| Abelmoschus esculentus (L.) Moench | 1278 images |
| Abies alba Mill. | 3764 images |
| Abies balsamea (L.) Mill. | 928 images |
| Abies firma Siebold & Zucc. | 21 images |
| Abies fraseri (Pursh) Poir. | 60 images |
| Abies homolepis Siebold & Zucc. | 44 images |
| Abies lasiocarpa (Hook.) Nutt. | 160 images |
| Abies procera Rehder | 248 images |
| Abronia ammophila Greene | 1 images |
| Abronia angustifolia Greene | 7 images |
| Abronia bigelovii Heimerl | 2 images |
| Abronia fragrans Nutt. ex Hook. | 51 images |
| Abronia gracilis Benth. | 2 images |
| Abronia latifolia Eschsch. | 184 images |
| Abronia mellifera Douglas ex Hook. | 5 images |
| Abronia pogonantha Heimerl | 16 images |
| Abronia umbellata Lam. | 150 images |
| Abrus precatorius L. | 396 images |
| Abutilon abutiloides (Jacq.) Garcke ex Hochr. | 17 images |
| Abutilon grandifolium (Willd.) Sweet | 341 images |
| Abutilon hirtum (Lam.) Sweet | 88 images |
| Abutilon incanum (Link) Sweet | 18 images |
| Abutilon indicum (L.) Sweet | 208 images |
| Abutilon theophrasti Medik. | 2859 images |
| Abutilon trisulcatum (Jacq.) Urb. | 4 images |
| Acacia angustissima (Mill.) Kuntze | 65 images |
| Acacia berlandieri Benth. | 32 images |
| Acacia choriophylla Benth. | 1 images |
| Acacia cornigera (L.) Willd. | 39 images |
| Acacia dealbata Link | 5566 images |
| Acacia farnesiana (L.) Willd. | 1005 images |
| Acacia longifolia (Andrews) Willd. | 975 images |
| Acacia macracantha Humb. & Bonpl. ex Willd. | 5 images |
| Acacia mearnsii De Wild. | 1024 images |
| Acacia paradoxa DC. | 68 images |
| Acacia pycnantha Benth. | 361 images |
| Acacia redolens Maslin | 42 images |
| Acacia retinodes Schltdl. | 2031 images |
| Acacia rigidula Benth. | 28 images |
| Acacia roemeriana Scheele | 1 images |
| Acacia sphaerocephala Schltdl. & Cham. | 1 images |
| Acacia tortuosa (L.) Willd. | 45 images |
| Acacia verticillata (L'Hér.) Willd. | 38 images |
| Acaena novae-zelandiae Kirk | 84 images |
| Acaena pinnatifida Ruiz & Pav. | 11 images |
| Acalypha alopecuroidea Jacq. | 48 images |
| Acalypha amentacea Roxb. | 9 images |
| Acalypha arvensis Poepp. | 46 images |
| Acalypha australis L. | 48 images |
| Acalypha californica Benth. | 27 images |
| Acalypha indica L. | 297 images |
| Acalypha monostachya Cav. | 25 images |
| Acalypha phleoides Cav. | 17 images |
| Acalypha poiretii Spreng. | 8 images |
| Acalypha radians Torr. | 4 images |
| Acalypha rhomboidea Raf. | 3 images |
| Acalypha virginica L. | 975 images |
| Acanthomintha duttonii (Abrams) Jokerst | 2 images |
| Acanthomintha lanceolata Curran | 7 images |
| Acanthospermum australe (Loefl.) Kuntze | 91 images |
| Acanthospermum hispidum DC. | 107 images |
| Acanthus mollis L. | 12550 images |
| Acer campestre L. | 18060 images |
| Acer circinatum Pursh | 365 images |
| Acer ginnala Maxim. | 136 images |
| Acer glabrum Torr. | 132 images |
| Acer grandidentatum Nutt. | 71 images |
| Acer leucoderme Small | 2 images |
| Acer macrophyllum Pursh | 1061 images |
| Acer negundo L. | 15610 images |
| Acer nigrum Michx. f. | 4 images |
| Acer palmatum Thunb. | 11534 images |
| Acer pensylvanicum L. | 775 images |
| Acer platanoides L. | 15814 images |
| Acer pseudoplatanus L. | 20705 images |
| Acer rubrum L. | 5779 images |
| Acer saccharinum L. | 7442 images |
| Acer saccharum Marshall | 1419 images |
| Acer spicatum Lam. | 397 images |
| Acer tataricum L. | 2842 images |
| Achillea ageratum L. | 461 images |
| Achillea distans Waldst. & Kit. ex Willd. | 2099 images |
| Achillea filipendulina Lam. | 5320 images |
| Achillea ligustica All. | 345 images |
| Achillea millefolium L. | 25003 images |
| Achillea nobilis L. | 8579 images |
| Achillea ptarmica L. | 3177 images |
| Achlys triphylla (Sm.) DC. | 2 images |
| Achyrachaena mollis Schauer | 87 images |
| Achyranthes aspera L. | 867 images |
| Achyranthes japonica (Miq.) Nakai | 3 images |
| Achyranthes splendens Mart. ex Moq. | 41 images |
| Acicarpha tribuloides Juss. | 30 images |
| Acinos arvensis (Lam.) Dandy | 29 images |
| Acleisanthes obtusa (Choisy) Standl. | 4 images |
| Aconitum columbianum Nutt. | 169 images |
| Aconitum napellus L. | 6535 images |
| Aconitum uncinatum L. | 10 images |
| Acorus calamus L. | 612 images |
| Acourtia microcephala DC. | 35 images |
| Acrostichum aureum L. | 271 images |
| Acrostichum danaeifolium Langsd. & Fisch. | 9 images |
| Actaea elata (Nutt.) Prantl | 22 images |
| Actaea pachypoda Elliott | 782 images |
| Actaea racemosa L. | 579 images |
| Actaea rubra (Aiton) Willd. | 692 images |
| Actaea spicata L. | 1117 images |
| Actinidia arguta (Siebold & Zucc.) Planch. ex Miq. | 285 images |
| Actinidia chinensis Planch. | 2894 images |
| Actinidia polygama (Siebold & Zucc.) Maxim. | 8 images |
| Actinostachys pennula (Sw.) Hook. | 45 images |
| Adenanthera pavonina L. | 284 images |
| Adenocaulon bicolor Hook. | 130 images |
| Adenophyllum porophyllum (Cav.) Hemsl. | 14 images |
| Adenostoma fasciculatum Hook. & Arn. | 11 images |
| Adenostoma sparsifolium Torr. | 73 images |
| Adiantum capillus-veneris L. | 3020 images |
| Adiantum caudatum L. | 24 images |
| Adiantum hispidulum Sw. | 294 images |
| Adiantum pedatum L. | 544 images |
| Adiantum tenerum Sw. | 20 images |
| Adiantum trapeziforme L. | 67 images |
| Adiantum villosum L. | 4 images |
| Adonis aestivalis L. | 677 images |
| Adonis annua L. | 788 images |
| Adonis vernalis L. | 1416 images |
| Adoxa moschatellina L. | 744 images |
| Aegilops cylindrica Host | 56 images |
| Aegilops geniculata Roth | 861 images |
| Aegilops neglecta Req. ex Bertol. | 113 images |
| Aegilops tauschii Coss. | 19 images |
| Aegilops triuncialis L. | 143 images |
| Aegopodium podagraria L. | 11070 images |
| Aeluropus littoralis (Gouan) Parl. | 100 images |
| Aeonium arboreum (L.) Webb & Berthel. | 4675 images |
| Aeschynomene americana L. | 152 images |
| Aeschynomene histrix Poir. | 5 images |
| Aeschynomene indica L. | 45 images |
| Aeschynomene rudis Benth. | 16 images |
| Aesculus californica (Spach) Nutt. | 662 images |
| Aesculus glabra Willd. | 835 images |
| Aesculus hippocastanum L. | 15902 images |
| Aesculus parviflora Walter | 1090 images |
| Aesculus pavia L. | 1369 images |
| Aethusa cynapium L. | 1752 images |
| Agalinis aspera (Douglas ex Benth.) Britton | 1 images |
| Agalinis calycina Pennell | 3 images |
| Agalinis edwardsiana Pennell | 10 images |
| Agalinis filifolia (Nutt.) Raf. | 2 images |
| Agalinis maritima (Raf.) Raf. | 6 images |
| Agalinis oligophylla Pennell | 2 images |
| Agalinis purpurea (L.) Pennell | 164 images |
| Agalinis tenuifolia (Vahl) Raf. | 97 images |
| Agapanthus praecox Willd. | 8297 images |
| Agastache foeniculum (Pursh) Kuntze | 1773 images |
| Agastache nepetoides (L.) Kuntze | 63 images |
| Agastache parvifolia Eastw. | 7 images |
| Agastache rupestris (Greene) Standl. | 109 images |
| Agastache scrophulariifolia (Willd.) Kuntze | 19 images |
| Agastache urticifolia (Benth.) Kuntze | 99 images |
| Agave americana L. | 7917 images |
| Agave asperrima Jacobi | 134 images |
| Agave attenuata Salm-Dyck | 3490 images |
| Agave chrysantha Peebles | 9 images |
| Agave decipiens Baker | 16 images |
| Agave deserti Engelm. | 170 images |
| Agave desmettiana Jacobi | 2 images |
| Agave havardiana Trel. | 67 images |
| Agave lechuguilla Torr. | 93 images |
| Agave palmeri Engelm. | 29 images |
| Agave parryi Engelm. | 411 images |
| Agave parviflora Torr. | 7 images |
| Agave schottii Engelm. | 13 images |
| Agave shawii Engelm. | 131 images |
| Agave sisalana Perrine | 1093 images |
| Agave univittata Haw. | 164 images |
| Agave utahensis Engelm. | 143 images |
| Ageratina altissima (L.) R.M. King & H. Rob. | 5 images |
| Ageratina aromatica (L.) Spach | 502 images |
| Ageratina jucunda (Greene) Clewell & Wooten | 13 images |
| Ageratum conyzoides L. | 550 images |
| Ageratum houstonianum Mill. | 3036 images |
| Aglaonema commutatum Schott | 5717 images |
| Agoseris apargioides (Less.) Greene | 49 images |
| Agoseris aurantiaca (Hook.) Greene | 46 images |
| Agoseris glauca (Pursh) Raf. | 33 images |
| Agoseris grandiflora (Nutt.) Greene | 52 images |
| Agoseris heterophylla (Nutt.) Greene | 45 images |
| Agrimonia eupatoria L. | 10595 images |
| Agrimonia gryposepala Wallr. | 302 images |
| Agrimonia pubescens Wallr. | 20 images |
| Agrimonia rostellata Wallr. | 29 images |
| Agrimonia striata Michx. | 18 images |
| Agropyron cristatum (L.) Gaertn. | 108 images |
| Agropyron desertorum (Fisch. ex Link) Schult. | 3 images |
| Agrostemma githago L. | 3706 images |
| Agrostis canina L. | 49 images |
| Agrostis capillaris L. | 1512 images |
| Agrostis densiflora Vasey | 1 images |
| Agrostis exarata Trin. | 11 images |
| Agrostis gigantea Roth | 133 images |
| Agrostis hallii Vasey | 1 images |
| Agrostis humilis Vasey | 1 images |
| Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. | 4 images |
| Agrostis mertensii Trin. | 10 images |
| Agrostis microphylla Steud. | 2 images |
| Agrostis pallens Trin. | 4 images |
| Agrostis perennans (Walter) Tuck. | 4 images |
| Agrostis scabra Willd. | 2 images |
| Agrostis stolonifera L. | 358 images |
| Agrostis variabilis Rydb. | 1 images |
| Ailanthus altissima (Mill.) Swingle | 11430 images |
| Aira caryophyllea L. | 400 images |
| Aira praecox L. | 92 images |
| Ajuga chamaepitys (L.) Schreb. | 920 images |
| Ajuga genevensis L. | 3442 images |
| Ajuga pyramidalis L. | 2045 images |
| Ajuga reptans L. | 20553 images |
| Akebia quinata (Houtt.) Decne. | 582 images |
| Albizia julibrissin Durazz. | 12580 images |
| Albizia lebbeck (L.) Benth. | 1219 images |
| Albizia procera (Roxb.) Benth. | 15 images |
| Alcea rosea L. | 14385 images |
| Alchemilla filicaulis Buser | 50 images |
| Alchemilla monticola Opiz | 606 images |
| Alchemilla subcrenata Buser | 61 images |
| Aldrovanda vesiculosa L. | 22 images |
| Aletris aurea Walter | 3 images |
| Aletris farinosa L. | 19 images |
| Aletris lutea Small | 5 images |
| Aleurites moluccanus (L.) Willd. | 335 images |
| Alhagi maurorum Medik. | 107 images |
| Alisma gramineum Lej. | 20 images |
| Alisma lanceolatum With. | 452 images |
| Alisma plantago-aquatica L. | 1689 images |
| Alisma subcordatum Raf. | 25 images |
| Alisma triviale Pursh | 35 images |
| Allamanda cathartica L. | 3345 images |
| Alliaria petiolata (M. Bieb.) Cavara & Grande | 6 images |
| Allionia choisyi Standl. | 8 images |
| Allionia incarnata L. | 136 images |
| Allium acuminatum Hook. | 55 images |
| Allium ampeloprasum L. | 4959 images |
| Allium anceps Kellogg | 23 images |
| Allium atroviolaceum Boiss. | 172 images |
| Allium burlewii Davidson | 13 images |
| Allium canadense L. | 300 images |
| Allium cepa L. | 2257 images |
| Allium cernuum Roth | 232 images |
| Allium cratericola Eastw. | 48 images |
| Allium crenulatum Wiegand | 20 images |
| Allium crispum Greene | 24 images |
| Allium dichlamydeum Greene | 16 images |
| Allium drummondii Regel | 53 images |
| Allium falcifolium Hook. & Arn. | 44 images |
| Allium fistulosum L. | 620 images |
| Allium glandulosum Link & Otto | 2 images |
| Allium hickmanii Eastw. | 1 images |
| Allium howellii Eastw. | 3 images |
| Allium hyalinum Curran | 11 images |
| Allium macropetalum Rydb. | 8 images |
| Allium monticola Davidson | 8 images |
| Allium neapolitanum Cirillo | 3244 images |
| Allium nigrum L. | 3468 images |
| Allium obtusum Lemmon | 32 images |
| Allium oleraceum L. | 634 images |
| Allium paniculatum L. | 218 images |
| Allium parvum Kellogg | 11 images |
| Allium peninsulare Lemmon ex Greene | 35 images |
| Allium porrum L. | 555 images |
| Allium praecox Brandegee | 15 images |
| Allium sativum L. | 1178 images |
| Allium schoenoprasum L. | 4154 images |
| Allium scorodoprasum L. | 893 images |
| Allium serra McNeal & Ownbey | 23 images |
| Allium shevockii McNeal | 4 images |
| Allium speculae Ownbey & Aase | 1 images |
| Allium sphaerocephalon L. | 2556 images |
| Allium tribracteatum Torr. | 4 images |
| Allium tricoccum Aiton | 375 images |
| Allium triquetrum L. | 3944 images |
| Allium tuberosum Rottler ex Spreng. | 1250 images |
| Allium unifolium Kellogg | 56 images |
| Allium vineale L. | 3184 images |
| Allium yosemitense Eastw. | 7 images |
| Alnus cordata (Loisel.) Duby | 2912 images |
| Alnus glutinosa (L.) Gaertn. | 14744 images |
| Alnus incana (L.) Moench | 2591 images |
| Alnus maritima (Marshall) Muhl. ex Nutt. | 4 images |
| Alnus rhombifolia Nutt. | 11 images |
| Alnus rubra Bong. | 45 images |
| Alnus serrulata (Aiton) Willd. | 126 images |
| Alnus viridis (Chaix) DC. | 3 images |
| Alocasia macrorrhizos (L.) G. Don | 2 images |
| Aloe vera (L.) Burm. f. | 2 images |
| Alopecurus aequalis Sobol. | 117 images |
| Alopecurus arundinaceus Poir. | 35 images |
| Alopecurus carolinianus Walter | 3 images |
| Alopecurus geniculatus L. | 107 images |
| Alopecurus magellanicus Lam. | 12 images |
| Alopecurus myosuroides Huds. | 476 images |
| Alopecurus pratensis L. | 2514 images |
| Alopecurus rendlei Eig | 38 images |
| Alopecurus saccatus Vasey | 4 images |
| Aloysia macrostachya (Torr.) Moldenke | 9 images |
| Aloysia triphylla (L'Hér.) Britton | 88 images |
| Alpinia zerumbet (Pers.) B.L. Burtt & R.M. Sm. | 1 images |
| Alstroemeria psittacina Lehm. | 81 images |
| Alternanthera brasiliana (L.) Kuntze | 1982 images |
| Alternanthera caracasana Kunth | 131 images |
| Alternanthera flavescens Kunth | 25 images |
| Alternanthera philoxeroides (Mart.) Griseb. | 330 images |
| Alternanthera pungens Kunth | 142 images |
| Alternanthera sessilis (L.) R. Br. ex DC. | 3 images |
| Althaea cannabina L. | 1407 images |
| Althaea hirsuta L. | 92 images |
| Althaea officinalis L. | 3210 images |
| Alvaradoa amorphoides Liebm. | 31 images |
| Alysicarpus vaginalis (L.) DC. | 200 images |
| Alyssum alyssoides (L.) L. | 950 images |
| Alyssum corsicum Duby | 17 images |
| Alyssum desertorum Stapf | 16 images |
| Alyssum murale Waldst. & Kit. | 90 images |
| Alyssum simplex Rudolphi | 167 images |
| Amaranthus albus L. | 487 images |
| Amaranthus blitum L. | 2171 images |
| Amaranthus californicus (Moq.) S. Watson | 1 images |
| Amaranthus caudatus L. | 3532 images |
| Amaranthus crassipes Schltdl. | 2 images |
| Amaranthus cruentus L. | 1033 images |
| Amaranthus deflexus L. | 1705 images |
| Amaranthus dubius Mart. ex Thell. | 67 images |
| Amaranthus graecizans L. | 30 images |
| Amaranthus hybridus L. | 1405 images |
| Amaranthus hypochondriacus L. | 1200 images |
| Amaranthus macrocarpus Benth. | 1 images |
| Amaranthus polygonoides L. | 18 images |
| Amaranthus pumilus Raf. | 5 images |
| Amaranthus retroflexus L. | 8247 images |
| Amaranthus spinosus L. | 1258 images |
| Amaranthus thunbergii Moq. | 10 images |
| Amaranthus tricolor L. | 942 images |
| Amaranthus viridis L. | 1483 images |
| Amaryllis belladonna L. | 2824 images |
| Amberboa moschata (L.) DC. | 5 images |
| Amblyolepis setigera DC. | 29 images |
| Ambrosia acanthicarpa Hook. | 62 images |
| Ambrosia artemisiifolia L. | 4706 images |
| Ambrosia bidentata Michx. | 19 images |
| Ambrosia confertiflora DC. | 19 images |
| Ambrosia hispida Pursh | 10 images |
| Ambrosia psilostachya DC. | 358 images |
| Ambrosia tenuifolia Spreng. | 51 images |
| Ambrosia trifida L. | 949 images |
| Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem. | 1 images |
| Amelanchier canadensis (L.) Medik. | 2259 images |
| Amelanchier laevis Wiegand | 152 images |
| Amelanchier obovalis (Michx.) Ashe | 1 images |
| Amelanchier pallida Greene | 6 images |
| Amelanchier stolonifera Wiegand | 7 images |
| Amelanchier utahensis Koehne | 65 images |
| Ammannia auriculata Willd. | 13 images |
| Ammannia coccinea Rottb. | 47 images |
| Ammannia latifolia L. | 15 images |
| Ammannia robusta Heer & Regel | 5 images |
| Ammi majus L. | 1764 images |
| Ammi visnaga (L.) Lam. | 42 images |
| Ammophila arenaria (L.) Link | 1452 images |
| Ammophila breviligulata Fernald | 46 images |
| Amorpha canescens Pursh | 209 images |
| Amorpha fruticosa L. | 1796 images |
| Amorpha herbacea Walter | 1 images |
| Ampelopsis aconitifolia Bunge | 35 images |
| Ampelopsis brevipedunculata (Maxim.) Trautv. | 4 images |
| Ampelopsis cordata Michx. | 356 images |
| Amphiachyris amoena (Shinners) Solbrig | 4 images |
| Amphiachyris dracunculoides (DC.) Nutt. | 92 images |
| Amphicarpaea bracteata (L.) Fernald | 415 images |
| Amsinckia menziesii (Lehm.) A. Nelson & J.F. Macbr. | 3 images |
| Amsonia ciliata Walter | 82 images |
| Amsonia grandiflora Alexander | 9 images |
| Amsonia hubrichtii Woodson | 176 images |
| Amsonia longiflora Torr. | 20 images |
| Amsonia tabernaemontana Walter | 638 images |
| Amsonia tharpii Woodson | 2 images |
| Amyris balsamifera L. | 4 images |
| Amyris elemifera L. | 35 images |
| Anacyclus clavatus (Desf.) Pers. | 2402 images |
| Anagallis arvensis L. | 1402 images |
| Anagallis monelli L. | 41 images |
| Anagallis pumila Sw. | 9 images |
| Ananas comosus (L.) Merr. | 2800 images |
| Anaphalis margaritacea (L.) Benth. | 12 images |
| Anchusa azurea Mill. | 2899 images |
| Anchusa capensis Thunb. | 3 images |
| Anchusa officinalis L. | 4330 images |
| Andira inermis (W. Wright) Kunth ex DC. | 4 images |
| Andrographis echioides (L.) Nees | 2 images |
| Andromeda polifolia L. | 545 images |
| Andropogon bicornis L. | 131 images |
| Andropogon glomeratus (Walter) Britton, Sterns & Poggenb. | 6 images |
| Andropogon gyrans Ashe | 9 images |
| Andropogon ternarius Michx. | 32 images |
| Andropogon virginicus L. | 3 images |
| Androsace chamaejasme Wulfen | 122 images |
| Androsace elongata L. | 59 images |
| Androsace maxima L. | 134 images |
| Androsace occidentalis Pursh | 5 images |
| Androsace septentrionalis L. | 149 images |
| Androstephium coeruleum (Scheele) Greene | 5 images |
| Anemia adiantifolia (L.) Sw. | 4 images |
| Anemia mexicana Klotzsch | 38 images |
| Anemone berlandieri Pritz. | 151 images |
| Anemone blanda Schott & Kotschy | 3021 images |
| Anemone canadensis L. | 746 images |
| Anemone caroliniana Walter | 9 images |
| Anemone lancifolia Pursh | 5 images |
| Anemone lithophila Rydb. | 1 images |
| Anemone multifida Poir. | 97 images |
| Anemone narcissiflora L. | 981 images |
| Anemone nemorosa L. | 16721 images |
| Anemone parviflora Michx. | 15 images |
| Anemone quinquefolia L. | 919 images |
| Anemone tuberosa Rydb. | 15 images |
| Anemone virginiana L. | 315 images |
| Anemopsis californica (Nutt.) Hook. & Arn. | 99 images |
| Anethum graveolens L. | 2422 images |
| Angelica arguta Nutt. | 6 images |
| Angelica atropurpurea L. | 369 images |
| Angelica lucida L. | 43 images |
| Angelica triquinata Michx. | 29 images |
| Angelonia angustifolia Benth. | 940 images |
| Anisacanthus quadrifidus (Vahl) Nees | 48 images |
| Aniseia martinicensis (Jacq.) Choisy | 14 images |
| Annona glabra L. | 287 images |
| Annona montana Macfad. | 238 images |
| Annona muricata L. | 1413 images |
| Annona squamosa L. | 1097 images |
| Anoda cristata (L.) Schltdl. | 61 images |
| Anredera cordifolia (Ten.) Steenis | 958 images |
| Antennaria alpina (L.) Gaertn. | 29 images |
| Antennaria howellii Greene | 20 images |
| Antennaria marginata Greene | 1 images |
| Antennaria media Greene | 5 images |
| Antennaria microphylla Rydb. | 5 images |
| Antennaria monocephala DC. | 2 images |
| Antennaria neglecta Greene | 150 images |
| Antennaria parlinii Fernald | 19 images |
| Antennaria parvifolia Nutt. | 86 images |
| Antennaria pulchella Greene | 6 images |
| Antennaria rosea Greene | 2 images |
| Antennaria solitaria Rydb. | 6 images |
| Antennaria umbrinella Rydb. | 1 images |
| Antennaria virginica Stebbins | 4 images |
| Anthemis arvensis L. | 3643 images |
| Anthemis austriaca Jacq. | 7 images |
| Anthemis cotula L. | 1464 images |
| Anthemis secundiramea Biv. | 89 images |
| Anthemis tinctoria L. | 14 images |
| Anthoxanthum aristatum Boiss. | 60 images |
| Anthoxanthum odoratum L. | 2012 images |
| Anthriscus cerefolium (L.) Hoffm. | 2766 images |
| Anthriscus sylvestris (L.) Hoffm. | 18455 images |
| Anthyllis vulneraria L. | 7884 images |
| Antigonon leptopus Hook. & Arn. | 1372 images |
| Antirrhinum majus L. | 14299 images |
| Anulocaulis annulatus (Coville) Standl. | 19 images |
| Anulocaulis leiosolenus (Torr.) Standl. | 3 images |
| Aphanes arvensis L. | 409 images |
| Aphanisma blitoides Nutt. ex Moq. | 5 images |
| Aphanostephus pilosus Buckley | 3 images |
| Aphanostephus ramosissimus DC. | 32 images |
| Apios americana Medik. | 295 images |
| Apium graveolens L. | 1838 images |
| Apium nodiflorum (L.) Lag. | 94 images |
| Apium repens (Jacq.) Lag. | 2 images |
| Aplectrum hyemale (Muhl. ex Willd.) Torr. | 28 images |
| Apluda mutica L. | 13 images |
| Apocynum androsaemifolium L. | 981 images |
| Apocynum cannabinum L. | 860 images |
| Apteria aphylla (Nutt.) Barnhart ex Small | 3 images |
| Aquilegia barnebyi Munz | 3 images |
| Aquilegia brevistyla Hook. | 1 images |
| Aquilegia canadensis L. | 1722 images |
| Aquilegia elegantula Greene | 11 images |
| Aquilegia eximia Van Houtte ex Planch. | 9 images |
| Aquilegia formosa Fisch. ex DC. | 59 images |
| Aquilegia jonesii Parry | 2 images |
| Aquilegia pubescens Coville | 366 images |
| Aquilegia saximontana Rydb. | 260 images |
| Aquilegia scopulorum Tidestr. | 4 images |
| Aquilegia vulgaris L. | 19892 images |
| Arabidopsis thaliana (L.) Heynh. | 1998 images |
| Arabis aculeolata Greene | 4 images |
| Arabis alpina L. | 1663 images |
| Arabis blepharophylla Hook. & Arn. | 32 images |
| Arabis hirsuta (L.) Scop. | 1248 images |
| Arabis modesta Rollins | 7 images |
| Arabis procurrens Waldst. & Kit. | 63 images |
| Arachis glabrata Benth. | 11 images |
| Arachis hypogaea L. | 855 images |
| Arachniodes simplicior (Makino) Ohwi | 38 images |
| Aralia chinensis L. | 13 images |
| Aralia elata (Miq.) Seem. | 720 images |
| Aralia hispida Vent. | 63 images |
| Aralia humilis Cav. | 4 images |
| Aralia nudicaulis L. | 770 images |
| Aralia racemosa L. | 264 images |
| Aralia spinosa L. | 416 images |
| Araucaria heterophylla (Salisb.) Franco | 3907 images |
| Araujia sericifera Brot. | 3024 images |
| Arbutus menziesii Pursh | 771 images |
| Arbutus unedo L. | 13631 images |
| Arbutus xalapensis Kunth | 130 images |
| Arceuthobium campylopodum Engelm. | 33 images |
| Arceuthobium divaricatum Engelm. | 1 images |
| Arceuthobium douglasii Engelm. | 4 images |
| Arctium lappa L. | 9586 images |
| Arctium tomentosum Mill. | 1867 images |
| Arctomecon merriamii Coville | 16 images |
| Arctostaphylos auriculata Eastw. | 8 images |
| Arctostaphylos bakeri Eastw. | 5 images |
| Arctostaphylos canescens Eastw. | 28 images |
| Arctostaphylos columbiana Piper | 25 images |
| Arctostaphylos confertiflora Eastw. | 12 images |
| Arctostaphylos glandulosa Eastw. | 65 images |
| Arctostaphylos glauca Lindl. | 128 images |
| Arctostaphylos imbricata Eastw. | 14 images |
| Arctostaphylos manzanita Parry | 88 images |
| Arctostaphylos mewukka Merriam | 11 images |
| Arctostaphylos montereyensis Hoover | 4 images |
| Arctostaphylos myrtifolia Parry | 21 images |
| Arctostaphylos nissenana Merriam | 3 images |
| Arctostaphylos obispoensis Eastw. | 5 images |
| Arctostaphylos pallida Eastw. | 16 images |
| Arctostaphylos parryana Lemmon | 9 images |
| Arctostaphylos patula Greene | 101 images |
| Arctostaphylos pringlei Parry | 6 images |
| Arctostaphylos pungens Kunth | 128 images |
| Arctostaphylos refugioensis Gankin | 2 images |
| Arctostaphylos regismontana Eastw. | 9 images |
| Arctostaphylos stanfordiana Parry | 33 images |
| Arctostaphylos tomentosa (Pursh) Lindl. | 18 images |
| Arctostaphylos uva-ursi (L.) Spreng. | 1959 images |
| Arctostaphylos virgata Eastw. | 7 images |
| Arctostaphylos viridissima (Eastw.) McMinn | 1 images |
| Arctostaphylos viscida Parry | 56 images |
| Arctotheca calendula (L.) Levyns | 1492 images |
| Ardisia crenata Sims | 962 images |
| Ardisia elliptica Thunb. | 199 images |
| Ardisia humilis Vahl | 13 images |
| Ardisia solanacea Roxb. | 12 images |
| Arenaria lanuginosa (Michx.) Rohrb. | 8 images |
| Arenaria serpyllifolia L. | 1222 images |
| Arethusa bulbosa L. | 42 images |
| Argemone albiflora Hornem. | 222 images |
| Argemone corymbosa Greene | 52 images |
| Argemone mexicana L. | 1085 images |
| Argemone munita Durand & Hilg. | 5 images |
| Argemone ochroleuca Sweet | 80 images |
| Argemone pleiacantha Greene | 47 images |
| Argemone sanguinea Greene | 10 images |
| Argemone squarrosa Greene | 5 images |
| Argentina anserina (L.) Rydb. | 4429 images |
| Argusia gnaphalodes (L.) Heine | 13 images |
| Argyreia nervosa (Burm. f.) Bojer | 252 images |
| Argyrochosma dealbata (Pursh) Windham | 1 images |
| Argyrochosma limitanea (Maxon) Windham | 1 images |
| Arisaema dracontium (L.) Schott | 329 images |
| Arisaema triphyllum (L.) Schott | 1945 images |
| Aristida adscensionis L. | 117 images |
| Aristida purpurea Nutt. | 7 images |
| Aristida spiciformis Elliott | 1 images |
| Aristida stricta Michx. | 7 images |
| Aristida ternipes Cav. | 10 images |
| Aristolochia californica Torr. | 140 images |
| Aristolochia clematitis L. | 2702 images |
| Aristolochia elegans Mast. | 310 images |
| Aristolochia erecta L. | 2 images |
| Aristolochia grandiflora Sw. | 249 images |
| Aristolochia labiata Willd. | 89 images |
| Aristolochia macrophylla Lam. | 681 images |
| Aristolochia maxima Jacq. | 25 images |
| Aristolochia ringens Vahl | 87 images |
| Aristolochia serpentaria L. | 17 images |
| Aristolochia tomentosa Sims | 71 images |
| Aristolochia watsonii Wooton & Standl. | 14 images |
| Aristolochia wrightii Seem. | 9 images |
| Aristotelia chilensis (Molina) Stuntz | 241 images |
| Armeria maritima (Mill.) Willd. | 5284 images |
| Arnica angustifolia Vahl | 2 images |
| Arnica cernua Howell | 3 images |
| Arnica chamissonis Less. | 82 images |
| Arnica cordifolia Hook. | 189 images |
| Arnica discoidea Benth. | 2 images |
| Arnica fulgens Pursh | 4 images |
| Arnica gracilis Rydb. | 1 images |
| Arnica lanceolata Nutt. | 20 images |
| Arnica latifolia Bong. | 31 images |
| Arnica lonchophylla Greene | 4 images |
| Arnica mollis Hook. | 19 images |
| Arnica rydbergii Greene | 3 images |
| Arnica sororia Greene | 3 images |
| Arnica spathulata Greene | 3 images |
| Arnoglossum atriplicifolium (L.) H. Rob. | 2 images |
| Arnoglossum plantagineum Raf. | 47 images |
| Arnoseris minima (L.) Schweigg. & Körte | 95 images |
| Aronia arbutifolia (L.) Pers. | 140 images |
| Aronia melanocarpa (Michx.) Elliott | 2904 images |
| Artemisia abrotanum L. | 1282 images |
| Artemisia absinthium L. | 4627 images |
| Artemisia annua L. | 3337 images |
| Artemisia arbuscula Nutt. | 19 images |
| Artemisia biennis Willd. | 132 images |
| Artemisia californica Less. | 786 images |
| Artemisia campestris L. | 1528 images |
| Artemisia cana Pursh | 28 images |
| Artemisia douglasiana Besser | 11 images |
| Artemisia dracunculus L. | 2177 images |
| Artemisia filifolia Torr. | 20 images |
| Artemisia frigida Willd. | 105 images |
| Artemisia ludoviciana Nutt. | 1068 images |
| Artemisia michauxiana Besser | 5 images |
| Artemisia pontica L. | 72 images |
| Artemisia pycnocephala (Less.) DC. | 87 images |
| Artemisia scoparia Waldst. & Kit. | 58 images |
| Artemisia stelleriana Besser | 168 images |
| Artemisia suksdorfii Piper | 47 images |
| Artemisia tilesii Ledeb. | 7 images |
| Artemisia tridentata Nutt. | 316 images |
| Artemisia umbelliformis Lam. | 340 images |
| Artemisia vulgaris L. | 16321 images |
| Arthraxon hispidus (Thunb.) Makino | 44 images |
| Arthrocnemum subterminale (Parish) Standl. | 24 images |
| Arum italicum Mill. | 16893 images |
| Aruncus dioicus (Walter) Fernald | 4301 images |
| Arundinaria gigantea (Walter) Muhl. | 189 images |
| Arundinaria tecta (Walter) Muhl. | 2 images |
| Arundo donax L. | 2904 images |
| Asarum canadense L. | 575 images |
| Asarum caudatum Lindl. | 172 images |
| Asclepias amplexicaulis Sm. | 51 images |
| Asclepias angustifolia Schweigg. | 17 images |
| Asclepias arenaria Torr. | 15 images |
| Asclepias asperula (Decne.) Woodson | 438 images |
| Asclepias brachystephana Engelm. ex Torr. | 17 images |
| Asclepias californica Greene | 80 images |
| Asclepias cordifolia (Benth.) Jeps. | 80 images |
| Asclepias curassavica L. | 2477 images |
| Asclepias emoryi (Greene) Vail | 9 images |
| Asclepias engelmanniana Woodson | 8 images |
| Asclepias eriocarpa Benth. | 97 images |
| Asclepias erosa Torr. | 54 images |
| Asclepias exaltata L. | 94 images |
| Asclepias fascicularis Decne. | 245 images |
| Asclepias hirtella (Pennell) Woodson | 16 images |
| Asclepias humistrata Walter | 27 images |
| Asclepias incarnata L. | 1074 images |
| Asclepias lanceolata Walter | 7 images |
| Asclepias lanuginosa Nutt. | 5 images |
| Asclepias latifolia (Torr.) Raf. | 119 images |
| Asclepias linaria Cav. | 82 images |
| Asclepias linearis Scheele | 16 images |
| Asclepias longifolia Michx. | 17 images |
| Asclepias macrotis Torr. | 5 images |
| Asclepias michauxii Decne. | 1 images |
| Asclepias nivea L. | 8 images |
| Asclepias nummularia Torr. | 2 images |
| Asclepias obovata Elliott | 2 images |
| Asclepias ovalifolia Decne. | 6 images |
| Asclepias pedicellata Walter | 5 images |
| Asclepias perennis Walter | 41 images |
| Asclepias purpurascens L. | 504 images |
| Asclepias quadrifolia Jacq. | 88 images |
| Asclepias rubra L. | 9 images |
| Asclepias solanoana Woodson | 18 images |
| Asclepias speciosa Torr. | 680 images |
| Asclepias subulata Decne. | 76 images |
| Asclepias sullivantii Engelm. ex A. Gray | 8 images |
| Asclepias syriaca L. | 3527 images |
| Asclepias tomentosa Elliott | 8 images |
| Asclepias tuberosa L. | 2150 images |
| Asclepias uncialis Greene | 2 images |
| Asclepias variegata L. | 133 images |
| Asclepias verticillata L. | 186 images |
| Asclepias vestita Hook. & Arn. | 12 images |
| Asclepias viridiflora Raf. | 210 images |
| Asclepias viridis Walter | 506 images |
| Asimina obovata (Willd.) Nash | 23 images |
| Asimina parviflora (Michx.) Dunal | 42 images |
| Asimina tetramera Small | 5 images |
| Asimina triloba (L.) Dunal | 1310 images |
| Asparagus aethiopicus L. | 1369 images |
| Asparagus asparagoides (L.) Druce | 257 images |
| Asparagus officinalis L. | 2957 images |
| Asparagus setaceus (Kunth) Jessop | 3157 images |
| Asperugo procumbens L. | 374 images |
| Asperula arvensis L. | 153 images |
| Asphodelus fistulosus L. | 2649 images |
| Aspidotis densa (Brack.) Lellinger | 54 images |
| Asplenium adiantum-nigrum L. | 1400 images |
| Asplenium dalhousiae Hook. | 4 images |
| Asplenium erosum L. | 2 images |
| Asplenium exiguum Bedd. | 21 images |
| Asplenium monanthes L. | 17 images |
| Asplenium montanum Willd. | 22 images |
| Asplenium nidus L. | 2189 images |
| Asplenium pinnatifidum Nutt. | 3 images |
| Asplenium platyneuron (L.) Britton, Sterns & Poggenb. | 343 images |
| Asplenium pumilum Sw. | 4 images |
| Asplenium resiliens Kunze | 11 images |
| Asplenium rhizophyllum L. | 78 images |
| Asplenium ruta-muraria L. | 1833 images |
| Asplenium scolopendrium L. | 5994 images |
| Asplenium septentrionale (L.) Hoffm. | 385 images |
| Asplenium serratum L. | 54 images |
| Asplenium trichomanes L. | 5560 images |
| Asplenium trichomanes-ramosum L. | 63 images |
| Asplenium vespertinum Maxon | 7 images |
| Aster alpinus L. | 3149 images |
| Astilbe japonica (C. Morren & Decne.) A. Gray | 1 images |
| Astragalus aequalis Clokey | 1 images |
| Astragalus agnicidus Barneby | 2 images |
| Astragalus alpinus L. | 338 images |
| Astragalus australis (L.) Lam. | 142 images |
| Astragalus beatleyae Barneby | 3 images |
| Astragalus brauntonii Parish | 5 images |
| Astragalus canadensis L. | 42 images |
| Astragalus cicer L. | 338 images |
| Astragalus clevelandii Greene | 2 images |
| Astragalus crassicarpus Nutt. | 61 images |
| Astragalus gibbsii Kellogg | 11 images |
| Astragalus glycyphyllos L. | 1572 images |
| Astragalus hamosus L. | 535 images |
| Astragalus johannis-howellii Barneby | 17 images |
| Astragalus layneae Greene | 37 images |
| Astragalus lotiflorus Hook. | 7 images |
| Astragalus magdalenae Greene | 21 images |
| Astragalus miguelensis Greene | 39 images |
| Astragalus missouriensis Nutt. | 24 images |
| Astragalus mollissimus Torr. | 43 images |
| Astragalus monoensis Barneby | 13 images |
| Astragalus nuttallianus DC. | 15 images |
| Astragalus pachypus Greene | 28 images |
| Astragalus pauperculus Greene | 2 images |
| Astragalus phoenix Barneby | 3 images |
| Astragalus racemosus Pursh | 14 images |
| Astragalus reventiformis (Rydb.) Barneby | 4 images |
| Astragalus sheldonii (Rydb.) Barneby | 3 images |
| Astragalus shevockii Barneby | 4 images |
| Astragalus siliceus Barneby | 1 images |
| Astragalus tenellus Pursh | 1 images |
| Astragalus traskiae Eastw. | 7 images |
| Astrophytum asterias (Zucc.) Lem. | 271 images |
| Atamisquea emarginata Miers ex Hook. & Arn. | 17 images |
| Athyrium filix-femina (L.) Roth | 3496 images |
| Athysanus pusillus (Hook.) Greene | 1 images |
| Atriplex argentea Nutt. | 3 images |
| Atriplex canescens (Pursh) Nutt. | 146 images |
| Atriplex fruticulosa Jeps. | 3 images |
| Atriplex glabriuscula Edmondston | 86 images |
| Atriplex glauca L. | 70 images |
| Atriplex hortensis L. | 1008 images |
| Atriplex laciniata L. | 460 images |
| Atriplex lindleyi Moq. | 6 images |
| Atriplex littoralis L. | 287 images |
| Atriplex micrantha Ledeb. | 66 images |
| Atriplex muelleri Benth. | 5 images |
| Atriplex oblongifolia Waldst. & Kit. | 15 images |
| Atriplex obovata Moq. | 5 images |
| Atriplex patula L. | 695 images |
| Atriplex prostrata Bouchér ex DC. | 3 images |
| Atriplex rosea L. | 38 images |
| Atriplex tatarica L. | 114 images |
| Atriplex vesicaria Heward ex Benth. | 2 images |
| Atropa bella-donna L. | 3963 images |
| Aubrieta deltoidea (L.) DC. | 5200 images |
| Aucuba japonica Thunb. | 5854 images |
| Aureolaria flava (L.) Farw. | 50 images |
| Aureolaria grandiflora (Benth.) Pennell | 53 images |
| Aureolaria pectinata (Nutt.) Pennell | 28 images |
| Aureolaria virginica (L.) Pennell | 34 images |
| Aurinia petraea (Ard.) Schur | 24 images |
| Aurinia saxatilis (L.) Desv. | 2598 images |
| Avena barbata Pott ex Link | 1119 images |
| Avena fatua L. | 2361 images |
| Avena sativa L. | 3576 images |
| Avena sterilis L. | 241 images |
| Avena strigosa Schreb. | 24 images |
| Avenula pubescens (Huds.) Dumort. | 86 images |
| Avicennia germinans (L.) L. | 411 images |
| Avicennia marina (Forssk.) Vierh. | 186 images |
| Axonopus compressus (Sw.) P. Beauv. | 1 images |
| Axonopus fissifolius (Raddi) Kuhlm. | 345 images |
| Ayenia compacta Rose | 42 images |
| Azolla caroliniana Willd. | 14 images |
| Azolla filiculoides Lam. | 344 images |
| Azolla pinnata R. Br. | 31 images |
| Baccharis angustifolia Michx. | 6 images |
| Baccharis douglasii DC. | 44 images |
| Baccharis halimifolia L. | 1494 images |
| Baccharis neglecta Britton | 90 images |
| Baccharis pilularis DC. | 700 images |
| Baccharis salicifolia (Ruiz & Pav.) Pers. | 25 images |
| Bacopa egensis (Poepp.) Pennell | 5 images |
| Bacopa eisenii (Kellogg) Pennell | 3 images |
| Bacopa repens (Sw.) Wettst. | 121 images |
| Bacopa rotundifolia (Michx.) Wettst. | 6 images |
| Bahia absinthifolia Benth. | 8 images |
| Baldellia ranunculoides (L.) Parl. | 398 images |
| Balduina uniflora Nutt. | 7 images |
| Ballota nigra L. | 4738 images |
| Balsamorhiza deltoidea Nutt. | 4 images |
| Balsamorhiza incana Nutt. | 6 images |
| Balsamorhiza sagittata (Pursh) Nutt. | 197 images |
| Bambusa vulgaris Schrad. ex J.C. Wendl. | 1 images |
| Baptisia alba (L.) Vent. | 2 images |
| Baptisia australis (L.) R. Br. | 2 images |
| Baptisia lanceolata (Walter) Elliott | 2 images |
| Baptisia nuttalliana Small | 49 images |
| Baptisia sphaerocarpa Nutt. | 124 images |
| Baptisia tinctoria (L.) R. Br. | 2 images |
| Barbarea orthoceras Ledeb. | 396 images |
| Barbarea verna (Mill.) Asch. | 1288 images |
| Barleria cristata L. | 691 images |
| Barleria lupulina Lindl. | 125 images |
| Bartonia verna (Michx.) Raf. ex Barton | 2 images |
| Bastardia viscosa (L.) Kunth | 1 images |
| Batis maritima L. | 49 images |
| Bauhinia monandra Kurz | 549 images |
| Bauhinia purpurea L. | 2294 images |
| Bauhinia variegata L. | 2770 images |
| Bauhinia yunnanensis Franch. | 17 images |
| Bebbia juncea (Benth.) Greene | 61 images |
| Beckmannia syzigachne (Steud.) Fernald | 16 images |
| Begonia cucullata Willd. | 8334 images |
| Begonia hirtella Link | 508 images |
| Bejaria racemosa Vent. | 14 images |
| Bellardia trixago (L.) All. | 179 images |
| Bellis perennis L. | 14281 images |
| Bensoniella oregona (Abrams & Bacig.) Morton | 2 images |
| Berberis canadensis Mill. | 8 images |
| Berberis darwinii Hook. | 1823 images |
| Berberis thunbergii DC. | 8349 images |
| Berberis vulgaris L. | 4856 images |
| Berberis wilcoxii Kearney | 1 images |
| Bergerocactus emoryi (Engelm.) Britton & Rose | 17 images |
| Berlandiera betonicifolia (Hook.) Small | 4 images |
| Berlandiera lyrata Benth. | 62 images |
| Berlandiera subacaulis (Nutt.) Nutt. | 17 images |
| Berteroa incana (L.) DC. | 4572 images |
| Berteroa mutabilis (Vent.) DC. | 15 images |
| Berula erecta (Huds.) Coville | 758 images |
| Beta vulgaris L. | 8560 images |
| Betula alleghaniensis Britton | 233 images |
| Betula glandulosa Michx. | 7 images |
| Betula lenta L. | 115 images |
| Betula nana L. | 322 images |
| Betula nigra L. | 698 images |
| Betula occidentalis Hook. | 36 images |
| Betula papyrifera Marshall | 437 images |
| Betula pendula Roth | 10771 images |
| Betula populifolia Marshall | 57 images |
| Betula pubescens Ehrh. | 4872 images |
| Betula pumila L. | 8 images |
| Bidens alba (L.) DC. | 243 images |
| Bidens aristosa (Michx.) Britton | 128 images |
| Bidens aurea (Aiton) Sherff | 982 images |
| Bidens bipinnata L. | 1241 images |
| Bidens cernua L. | 467 images |
| Bidens connata Muhl. ex Willd. | 59 images |
| Bidens frondosa L. | 2716 images |
| Bidens pilosa L. | 2803 images |
| Bidens tripartita L. | 1082 images |
| Bidens vulgata Greene | 63 images |
| Bifora testiculata (L.) Spreng. | 55 images |
| Bignonia capreolata L. | 491 images |
| Billbergia pyramidalis (Sims) Lindl. | 326 images |
| Bischofia javanica Blume | 123 images |
| Bixa orellana L. | 1159 images |
| Blechnum occidentale L. | 95 images |
| Blechnum orientale L. | 24 images |
| Blechnum serrulatum Rich. | 1 images |
| Blechnum spicant (L.) Sm. | 648 images |
| Blechum pyramidatum (Lam.) Urb. | 127 images |
| Blennosperma bakeri Heiser | 14 images |
| Blepharipappus scaber Hook. | 23 images |
| Blepharizonia laxa Greene | 16 images |
| Blepharizonia plumosa (Kellogg) Greene | 8 images |
| Blepharoneuron tricholepis (Torr.) Nash | 3 images |
| Blephilia hirsuta (Pursh) Benth. | 80 images |
| Bloomeria crocea (Torr.) Coville | 50 images |
| Bloomeria humilis Hoover | 1 images |
| Blutaparon vermiculare (L.) Mears | 64 images |
| Boehmeria cylindrica (L.) Sw. | 540 images |
| Boehmeria nivea (L.) Gaudich. | 190 images |
| Boerhavia anisophylla Torr. | 4 images |
| Boerhavia coccinea Mill. | 169 images |
| Boerhavia diffusa L. | 485 images |
| Boerhavia erecta L. | 177 images |
| Boerhavia repens L. | 40 images |
| Boerhavia spicata Choisy | 3 images |
| Bolboschoenus maritimus (L.) Palla | 700 images |
| Boltonia asteroides (L.) L'Hér. | 22 images |
| Bonamia ovalifolia (Torr.) Hallier f. | 1 images |
| Bontia daphnoides L. | 75 images |
| Borago officinalis L. | 18476 images |
| Borrichia arborescens (L.) DC. | 44 images |
| Borrichia frutescens (L.) DC. | 132 images |
| Boschniakia hookeri Walp. | 1 images |
| Bothriochloa barbinodis (Lag.) Herter | 439 images |
| Bothriochloa ischaemum (L.) Keng | 510 images |
| Bothriochloa laguroides (DC.) Herter | 15 images |
| Bothriochloa saccharoides (Sw.) Rydb. | 3 images |
| Botrychium dissectum Spreng. | 148 images |
| Botrychium lunaria (L.) Sw. | 481 images |
| Botrychium virginianum (L.) Sw. | 212 images |
| Bouchea prismatica (L.) Kuntze | 32 images |
| Bouchea spathulata Torr. | 2 images |
| Bougainvillea glabra Choisy | 8743 images |
| Bougainvillea spectabilis Willd. | 10132 images |
| Bourreria succulenta Jacq. | 90 images |
| Bouteloua aristidoides (Kunth) Griseb. | 3 images |
| Bouteloua curtipendula (Michx.) Torr. | 114 images |
| Bouteloua rigidiseta (Steud.) Hitchc. | 21 images |
| Bouvardia ternifolia (Cav.) Schltdl. | 180 images |
| Bowlesia incana Ruiz & Pav. | 318 images |
| Boykinia aconitifolia Nutt. | 4 images |
| Brachiaria eruciformis (Sm.) Griseb. | 3 images |
| Brachypodium phoenicoides (L.) Roem. & Schult. | 135 images |
| Brachypodium rupestre (Host) Roem. & Schult. | 55 images |
| Brassia caudata (L.) Lindl. | 235 images |
| Brassica elongata Ehrh. | 27 images |
| Brassica juncea (L.) Czern. | 1245 images |
| Brassica napus L. | 9132 images |
| Brassica oleracea L. | 8152 images |
| Brassica rapa L. | 3535 images |
| Brassica tournefortii Gouan | 296 images |
| Brickellia cordifolia Elliott | 3 images |
| Brickellia desertorum Coville | 2 images |
| Brickellia eupatorioides (L.) Shinners | 77 images |
| Brickellia grandiflora (Hook.) Nutt. | 8 images |
| Brickellia oblongifolia Nutt. | 3 images |
| Briza maxima L. | 1736 images |
| Briza media L. | 866 images |
| Briza minor L. | 311 images |
| Brodiaea appendiculata Hoover | 13 images |
| Brodiaea elegans Hoover | 131 images |
| Brodiaea jolonensis Eastw. | 15 images |
| Brodiaea kinkiensis Niehaus | 6 images |
| Brodiaea orcuttii (Greene) Baker | 9 images |
| Brodiaea pallida Hoover | 7 images |
| Brodiaea terrestris Kellogg | 50 images |
| Bromelia pinguin L. | 275 images |
| Bromus arizonicus (Shear) Stebbins | 1 images |
| Bromus arvensis L. | 139 images |
| Bromus carinatus Hook. & Arn. | 6 images |
| Bromus catharticus Vahl | 186 images |
| Bromus diandrus Roth | 261 images |
| Bromus erectus Huds. | 97 images |
| Bromus grossus Desf. ex DC. | 1 images |
| Bromus hordeaceus L. | 2540 images |
| Bromus inermis Leyss. | 248 images |
| Bromus lanceolatus Roth | 62 images |
| Bromus latiglumis (Shear) Hitchc. | 2 images |
| Bromus madritensis L. | 132 images |
| Bromus marginatus Nees ex Steud. | 1 images |
| Bromus pubescens Muhl. ex Willd. | 5 images |
| Bromus racemosus L. | 177 images |
| Bromus ramosus Huds. | 53 images |
| Bromus rubens L. | 77 images |
| Bromus scoparius L. | 4 images |
| Bromus secalinus L. | 224 images |
| Bromus sitchensis Trin. | 5 images |
| Bromus squarrosus L. | 96 images |
| Bromus sterilis L. | 242 images |
| Bromus suksdorfii Vasey | 6 images |
| Bromus tectorum L. | 139 images |
| Bromus vulgaris (Hook.) Shear | 1 images |
| Brosimum alicastrum Sw. | 111 images |
| Broussonetia papyrifera (L.) L'Hér. ex Vent. | 2118 images |
| Browallia americana L. | 147 images |
| Brugmansia versicolor Lagerh. | 527 images |
| Bruguiera gymnorhiza (L.) Lam. ex Savigny | 46 images |
| Brunnichia ovata (Walter) Shinners | 20 images |
| Bryonia alba L. | 2209 images |
| Bryonia cretica L. | 7122 images |
| Bryonia dioica Jacq. | 4 images |
| Buchnera longifolia Kunth | 3 images |
| Bucida buceras L. | 60 images |
| Buckleya distichophylla (Nutt.) Torr. | 4 images |
| Buddleja alternifolia Maxim. | 506 images |
| Buddleja davidii Franch. | 16381 images |
| Buddleja lindleyana Fortune | 86 images |
| Buddleja madagascariensis Lam. | 139 images |
| Buddleja marrubiifolia Benth. | 8 images |
| Buddleja officinalis Maxim. | 29 images |
| Buddleja racemosa Torr. | 6 images |
| Buddleja saligna Willd. | 39 images |
| Buddleja scordioides Kunth | 4 images |
| Buddleja sessiliflora Kunth | 21 images |
| Buddleja utahensis Coville | 3 images |
| Bunias erucago L. | 1045 images |
| Bunias orientalis L. | 2084 images |
| Bupleurum lancifolium Hornem. | 27 images |
| Bupleurum rotundifolium L. | 454 images |
| Bursera fagaroides (Kunth) Engl. | 32 images |
| Bursera simaruba (L.) Sarg. | 499 images |
| Butia capitata (Mart.) Becc. | 475 images |
| Butomus umbellatus L. | 1536 images |
| Buxus sempervirens L. | 9210 images |
| Byrsonima lucida (Mill.) DC. | 33 images |
| Caesalpinia bonduc (L.) Roxb. | 258 images |
| Caesalpinia pulcherrima (L.) Sw. | 3035 images |
| Caesalpinia spinosa (Molina) Kuntze | 138 images |
| Cajanus cajan (L.) Millsp. | 699 images |
| Cajanus scarabaeoides (L.) Thouars | 30 images |
| Cakile edentula (Bigelow) Hook. | 229 images |
| Cakile maritima Scop. | 5876 images |
| Caladium bicolor (Aiton) Vent. | 6288 images |
| Calamagrostis koelerioides Vasey | 2 images |
| Calamagrostis sesquiflora (Trin.) Tzvelev | 4 images |
| Calamagrostis stricta (Timm) Koeler | 25 images |
| Calamintha nepeta (L.) Savi | 593 images |
| Calandrinia ciliata (Ruiz & Pav.) DC. | 24 images |
| Calendula arvensis L. | 5408 images |
| Calendula officinalis L. | 14929 images |
| Calepina irregularis (Asso) Thell. | 1638 images |
| Calibrachoa parviflora (Juss.) D'Arcy | 2204 images |
| Calla palustris L. | 1274 images |
| Calliandra conferta Benth. | 1 images |
| Calliandra eriophylla Benth. | 212 images |
| Calliandra humilis Benth. | 3 images |
| Callicarpa americana L. | 3258 images |
| Callicarpa japonica Thunb. | 179 images |
| Callirhoe bushii Fernald | 4 images |
| Callirhoe digitata Nutt. | 114 images |
| Callisia fragrans (Lindl.) Woodson | 1670 images |
| Callisia repens (Jacq.) L. | 2789 images |
| Callistemon citrinus (Curtis) Skeels | 10600 images |
| Callistephus chinensis (L.) Nees | 3890 images |
| Callitriche fassettii Schotsman | 2 images |
| Callitriche hermaphroditica L. | 7 images |
| Callitriche heterophylla Pursh | 3 images |
| Callitriche marginata Torr. | 8 images |
| Callitriche palustris L. | 360 images |
| Callitriche stagnalis Scop. | 599 images |
| Callitriche terrestris Raf. | 5 images |
| Calluna vulgaris (L.) Hull | 8431 images |
| Calocedrus decurrens (Torr.) Florin | 2988 images |
| Calochortus amabilis Purdy | 60 images |
| Calochortus amoenus Greene | 8 images |
| Calochortus apiculatus Baker | 24 images |
| Calochortus dunnii Purdy | 7 images |
| Calochortus elegans Pursh | 17 images |
| Calochortus excavatus Greene | 18 images |
| Calochortus invenustus Greene | 84 images |
| Calochortus kennedyi Porter | 104 images |
| Calochortus luteus Douglas ex Lindl. | 185 images |
| Calochortus lyallii Baker | 14 images |
| Calochortus macrocarpus Douglas | 71 images |
| Calochortus minimus Ownbey | 30 images |
| Calochortus monophyllus (Lindl.) Lem. | 51 images |
| Calochortus nitidus Douglas | 1 images |
| Calochortus obispoensis Lemmon | 17 images |
| Calochortus panamintensis (Ownbey) Reveal | 1 images |
| Calochortus persistens Ownbey | 16 images |
| Calochortus plummerae Greene | 68 images |
| Calochortus simulans (Hoover) Munz | 7 images |
| Calochortus splendens Douglas ex Benth. | 131 images |
| Calochortus striatus Parish | 29 images |
| Calochortus subalpinus Piper | 22 images |
| Calochortus syntrophus Callahan | 3 images |
| Calochortus tolmiei Hook. & Arn. | 135 images |
| Calochortus uniflorus Hook. & Arn. | 58 images |
| Calochortus venustus Douglas ex Benth. | 146 images |
| Calochortus westonii Eastw. | 3 images |
| Calopogon barbatus (Walter) Ames | 4 images |
| Calopogon multiflorus Lindl. | 5 images |
| Calopogon pallidus Chapm. | 2 images |
| Calopogon tuberosus (L.) Britton, Sterns & Poggenb. | 72 images |
| Calotropis procera (Aiton) W.T. Aiton | 9 images |
| Caltha leptosepala DC. | 142 images |
| Caltha palustris L. | 9931 images |
| Calycadenia multiglandulosa DC. | 25 images |
| Calycadenia truncata DC. | 15 images |
| Calycanthus floridus L. | 1831 images |
| Calycanthus occidentalis Hook. & Arn. | 52 images |
| Calypso bulbosa (L.) Oakes | 423 images |
| Calyptocarpus vialis Less. | 475 images |
| Calyptranthes zuzygium (L.) Sw. | 1 images |
| Calystegia atriplicifolia Hallier f. | 6 images |
| Calystegia collina (Greene) Brummitt | 35 images |
| Calystegia hederacea Wall. | 10 images |
| Calystegia macrostegia (Greene) Brummitt | 128 images |
| Calystegia malacophylla (Greene) Munz | 23 images |
| Calystegia peirsonii (Abrams) Brummitt | 2 images |
| Calystegia purpurata (Greene) Brummitt | 80 images |
| Calystegia sepium (L.) R. Br. | 17 images |
| Calystegia silvatica (Kit.) Griseb. | 589 images |
| Calystegia soldanella (L.) R. Br. | 2 images |
| Calystegia spithamaea (L.) Pursh | 17 images |
| Camassia quamash (Pursh) Greene | 656 images |
| Camassia scilloides (Raf.) Cory | 136 images |
| Camelina microcarpa Andrz. ex DC. | 98 images |
| Camelina rumelica Velen. | 17 images |
| Camelina sativa (L.) Crantz | 209 images |
| Camellia japonica L. | 10847 images |
| Camellia sasanqua Thunb. | 4464 images |
| Camellia sinensis (L.) Kuntze | 617 images |
| Campanula aparinoides Pursh | 20 images |
| Campanula bononiensis L. | 192 images |
| Campanula carpatica Jacq. | 676 images |
| Campanula divaricata Michx. | 27 images |
| Campanula exigua Rattan | 9 images |
| Campanula glomerata L. | 7019 images |
| Campanula lanata Friv. | 13 images |
| Campanula lasiocarpa Cham. | 14 images |
| Campanula latifolia L. | 1398 images |
| Campanula medium L. | 2562 images |
| Campanula patula L. | 4152 images |
| Campanula persicifolia L. | 8807 images |
| Campanula piperi Howell | 6 images |
| Campanula poscharskyana Degen | 6248 images |
| Campanula punctata Lam. | 372 images |
| Campanula rapunculoides L. | 4692 images |
| Campanula rotundifolia L. | 6976 images |
| Campanula scabrella Engelm. | 8 images |
| Campanula sharsmithiae Morin | 3 images |
| Campanula shetleri Heckard | 1 images |
| Campanula trachelium L. | 9198 images |
| Campanula uniflora L. | 2 images |
| Campanula wilkinsiana Greene | 9 images |
| Campanulastrum americanum (L.) Small | 79 images |
| Campsis radicans (L.) Seem. ex Bureau | 14 images |
| Campyloneurum angustifolium (Sw.) Fée | 54 images |
| Campyloneurum phyllitidis (L.) C. Presl | 26 images |
| Canavalia brasiliensis Mart. ex Benth. | 21 images |
| Canavalia ensiformis (L.) DC. | 45 images |
| Canavalia rosea (Sw.) DC. | 582 images |
| Canella winterana (L.) Gaertn. | 71 images |
| Canna flaccida Salisb. | 41 images |
| Canna glauca L. | 160 images |
| Canna indica L. | 10674 images |
| Cannabis sativa L. | 5229 images |
| Canotia holacantha Torr. | 6 images |
| Capparis cynophallophora L. | 22 images |
| Capparis flexuosa (L.) L. | 99 images |
| Capparis sandwichiana DC. | 7 images |
| Capraria biflora L. | 106 images |
| Capsella bursa-pastoris (L.) Medik. | 9414 images |
| Capsicum annuum L. | 11632 images |
| Caragana arborescens Lam. | 1491 images |
| Cardamine angulata Hook. | 8 images |
| Cardamine bellidifolia L. | 27 images |
| Cardamine bulbifera (L.) Crantz | 2291 images |
| Cardamine bulbosa (Schreb. ex Muhl.) Britton, Sterns & Poggenb. | 20 images |
| Cardamine californica (Nutt.) Greene | 6 images |
| Cardamine douglassii Britton | 6 images |
| Cardamine flexuosa With. | 5168 images |
| Cardamine hirsuta L. | 3935 images |
| Cardamine impatiens L. | 1567 images |
| Cardamine nuttallii Greene | 55 images |
| Cardamine oligosperma Nutt. | 52 images |
| Cardamine parviflora L. | 1765 images |
| Cardamine pensylvanica Muhl. ex Willd. | 4 images |
| Cardamine pratensis L. | 16081 images |
| Cardaria draba (L.) Desv. | 2 images |
| Cardiospermum halicacabum L. | 1096 images |
| Carduus acanthoides L. | 3179 images |
| Carduus crispus L. | 657 images |
| Carduus nutans L. | 4267 images |
| Carduus pycnocephalus L. | 4148 images |
| Carex acutiformis Ehrh. | 1676 images |
| Carex albolutescens Schwein. | 5 images |
| Carex amplifolia Boott | 1 images |
| Carex aquatilis Wahlenb. | 19 images |
| Carex arcta Boott | 6 images |
| Carex arenaria L. | 257 images |
| Carex atherodes Spreng. | 5 images |
| Carex aurea Nutt. | 14 images |
| Carex baileyi Britton | 1 images |
| Carex barbarae Dewey | 6 images |
| Carex bigelowii Torr. ex Schwein. | 23 images |
| Carex blanda Dewey | 27 images |
| Carex breweri Boott | 16 images |
| Carex brunnea Thunb. | 12 images |
| Carex brunnescens (Pers.) Poir. | 40 images |
| Carex bushii Mack. | 3 images |
| Carex buxbaumii Wahlenb. | 71 images |
| Carex canescens L. | 124 images |
| Carex capillaris L. | 51 images |
| Carex careyana Torr. ex Dewey | 5 images |
| Carex caroliniana Schwein. | 1 images |
| Carex cephalophora Muhl. ex Willd. | 18 images |
| Carex cherokeensis Schwein. | 16 images |
| Carex comosa Boott | 41 images |
| Carex conjuncta Boott | 4 images |
| Carex crinita Lam. | 59 images |
| Carex cryptolepis Mack. | 8 images |
| Carex decomposita Muhl. | 3 images |
| Carex deweyana Schwein. | 7 images |
| Carex diandra Schrank | 75 images |
| Carex disperma Dewey | 3 images |
| Carex distans L. | 157 images |
| Carex divisa Huds. | 137 images |
| Carex divulsa Stokes | 590 images |
| Carex ebenea Rydb. | 1 images |
| Carex eburnea Boott | 25 images |
| Carex echinata Murray | 262 images |
| Carex emoryi Dewey | 8 images |
| Carex filifolia Nutt. | 8 images |
| Carex flacca Schreb. | 1801 images |
| Carex flaccosperma Dewey | 20 images |
| Carex flava L. | 268 images |
| Carex folliculata L. | 5 images |
| Carex formosa Dewey | 1 images |
| Carex frankii Kunth | 17 images |
| Carex garberi Fernald | 1 images |
| Carex glacialis Mack. | 53 images |
| Carex globosa Boott | 6 images |
| Carex gracilior Mack. | 1 images |
| Carex gracillima Schwein. | 20 images |
| Carex granularis Muhl. ex Willd. | 5 images |
| Carex grayi Carey | 4 images |
| Carex grisea Wahlenb. | 17 images |
| Carex harfordii Mack. | 4 images |
| Carex hirsutella Mack. | 13 images |
| Carex hirta L. | 717 images |
| Carex hirtifolia Mack. | 8 images |
| Carex hitchcockiana Dewey | 1 images |
| Carex hoodii Boott | 3 images |
| Carex hyalinolepis Steud. | 5 images |
| Carex hystericina Muhl. ex Willd. | 30 images |
| Carex intumescens Rudge | 102 images |
| Carex jamesii Schwein. | 7 images |
| Carex kobomugi Ohwi | 2 images |
| Carex lachenalii Schkuhr | 45 images |
| Carex lacustris Willd. | 10 images |
| Carex laeviconica Dewey | 3 images |
| Carex laeviculmis Meinsh. | 3 images |
| Carex laevivaginata (Kük.) Mack. | 1 images |
| Carex lasiocarpa Ehrh. | 51 images |
| Carex laxiflora Lam. | 7 images |
| Carex lenticularis Michx. | 5 images |
| Carex leporinella Mack. | 1 images |
| Carex leptopoda Mack. | 4 images |
| Carex limosa L. | 112 images |
| Carex livida (Wahlenb.) Willd. | 6 images |
| Carex longii Mack. | 10 images |
| Carex lupuliformis Sartwell ex Dewey | 8 images |
| Carex lupulina Muhl. ex Willd. | 82 images |
| Carex lurida Wahlenb. | 98 images |
| Carex luzulina Olney | 8 images |
| Carex lyngbyei Hornem. | 8 images |
| Carex macrocephala Willd. ex Spreng. | 6 images |
| Carex magellanica Lam. | 67 images |
| Carex meadii Dewey | 6 images |
| Carex mesochorea Mack. | 2 images |
| Carex michauxiana Boeckeler | 3 images |
| Carex microglochin Wahlenb. | 77 images |
| Carex microptera Mack. | 5 images |
| Carex muricata L. | 71 images |
| Carex muskingumensis Schwein. | 114 images |
| Carex nigra (L.) Reichard | 466 images |
| Carex nigromarginata Schwein. | 3 images |
| Carex normalis Mack. | 13 images |
| Carex norvegica Retz. | 21 images |
| Carex obtusata Lilj. | 5 images |
| Carex oligosperma Michx. | 7 images |
| Carex paleacea Schreb. ex Wahlenb. | 8 images |
| Carex pallescens L. | 281 images |
| Carex panicea L. | 213 images |
| Carex pauciflora Lightf. | 87 images |
| Carex paysonis Clokey | 4 images |
| Carex pedunculata Muhl. ex Willd. | 21 images |
| Carex pendula Huds. | 4076 images |
| Carex pensylvanica Lam. | 83 images |
| Carex phaeocephala Piper | 1 images |
| Carex picta Steud. | 16 images |
| Carex planostachys Kunze | 5 images |
| Carex plantaginea Lam. | 164 images |
| Carex praticola Rydb. | 1 images |
| Carex pseudocyperus L. | 442 images |
| Carex pumila Thunb. | 26 images |
| Carex pyrenaica Wahlenb. | 51 images |
| Carex radiata (Wahlenb.) Small | 36 images |
| Carex rariflora (Wahlenb.) Sm. | 2 images |
| Carex raynoldsii Dewey | 1 images |
| Carex retrorsa Schwein. | 4 images |
| Carex rostrata Stokes | 318 images |
| Carex rupestris All. | 51 images |
| Carex sartwellii Dewey | 4 images |
| Carex saxatilis L. | 19 images |
| Carex scabrata Schwein. | 10 images |
| Carex scirpoidea Michx. | 2 images |
| Carex secalina Willd. ex Wahlenb. | 3 images |
| Carex sparganioides Muhl. ex Willd. | 15 images |
| Carex spectabilis Dewey | 5 images |
| Carex spicata Huds. | 344 images |
| Carex sprengelii Dewey ex Spreng. | 6 images |
| Carex squarrosa L. | 29 images |
| Carex sterilis Willd. | 3 images |
| Carex stipata Muhl. ex Willd. | 51 images |
| Carex straminea Willd. ex Schkuhr | 1 images |
| Carex stricta Lam. | 45 images |
| Carex subbracteata Mack. | 3 images |
| Carex supina Willd. ex Wahlenb. | 2 images |
| Carex swanii (Fernald) Mack. | 4 images |
| Carex sylvatica Huds. | 1223 images |
| Carex tenera Dewey | 8 images |
| Carex tenuiflora Wahlenb. | 2 images |
| Carex tetrastachya Scheele | 3 images |
| Carex torta Boott ex Tuck. | 2 images |
| Carex tribuloides Wahlenb. | 15 images |
| Carex trichocarpa Muhl. ex Willd. | 15 images |
| Carex tumulicola Mack. | 2 images |
| Carex typhina Michx. | 4 images |
| Carex utriculata Boott | 8 images |
| Carex vaginata Tausch | 62 images |
| Carex vallicola Dewey | 2 images |
| Carex vesicaria L. | 269 images |
| Carex virescens Muhl. ex Willd. | 5 images |
| Carex viridula Michx. | 1 images |
| Carex vulpinoidea Michx. | 109 images |
| Carex woodii Dewey | 2 images |
| Carica papaya L. | 4933 images |
| Carissa macrocarpa (Eckl.) A. DC. | 1 images |
| Carlina vulgaris L. | 1947 images |
| Carlowrightia parviflora (Buckley) Wassh. | 2 images |
| Carminatia tenuiflora DC. | 5 images |
| Carnegiea gigantea (Engelm.) Britton & Rose | 262 images |
| Carpenteria californica Torr. | 118 images |
| Carphephorus pseudoliatris Cass. | 3 images |
| Carpinus betulus L. | 19765 images |
| Carpinus caroliniana Walter | 348 images |
| Carthamus lanatus L. | 1509 images |
| Carthamus tinctorius L. | 907 images |
| Carum carvi L. | 1151 images |
| Carya glabra (Mill.) Sweet | 1899 images |
| Carya illinoinensis (Wangenh.) K. Koch | 5 images |
| Carya ovata (Mill.) K. Koch | 8 images |
| Carya tomentosa (Lam.) Nutt. | 69 images |
| Caryota mitis Lour. | 962 images |
| Caryota urens L. | 377 images |
| Casasia clusiifolia (Jacq.) Urb. | 7 images |
| Cassia afrofistula Brenan | 4 images |
| Cassia fistula L. | 1914 images |
| Cassia javanica L. | 372 images |
| Cassytha filiformis L. | 185 images |
| Castanea crenata Siebold & Zucc. | 528 images |
| Castanea dentata (Marshall) Borkh. | 648 images |
| Castanea mollissima Blume | 61 images |
| Castanea pumila (L.) Mill. | 55 images |
| Castanea sativa Mill. | 13136 images |
| Castilleja affinis Hook. & Arn. | 43 images |
| Castilleja ambigua Hook. & Arn. | 1 images |
| Castilleja applegatei Fernald | 297 images |
| Castilleja arachnoidea Greenm. | 36 images |
| Castilleja chrysantha Greenm. | 1 images |
| Castilleja coccinea (L.) Spreng. | 104 images |
| Castilleja crista-galli Rydb. | 3 images |
| Castilleja cusickii Greenm. | 17 images |
| Castilleja foliolosa Hook. & Arn. | 2 images |
| Castilleja grisea Dunkle | 3 images |
| Castilleja hispida Benth. | 29 images |
| Castilleja indivisa Engelm. | 317 images |
| Castilleja levisecta Greenm. | 6 images |
| Castilleja linariifolia Benth. | 89 images |
| Castilleja mendocinensis (Eastw.) Pennell | 29 images |
| Castilleja miniata Douglas ex Hook. | 1 images |
| Castilleja mollis Pennell | 8 images |
| Castilleja nana Eastw. | 65 images |
| Castilleja nervata Eastw. | 36 images |
| Castilleja occidentalis Torr. | 14 images |
| Castilleja parviflora Bong. | 104 images |
| Castilleja patriotica Fernald | 11 images |
| Castilleja peckiana Pennell | 4 images |
| Castilleja pruinosa Fernald | 12 images |
| Castilleja pulchella Rydb. | 1 images |
| Castilleja rhexiifolia Rydb. | 9 images |
| Castilleja rupicola Piper ex Fernald | 16 images |
| Castilleja scabrida Eastw. | 5 images |
| Castilleja schizotricha Greenm. | 2 images |
| Castilleja septentrionalis Lindl. | 1 images |
| Castilleja sessiliflora Pursh | 14 images |
| Castilleja subinclusa Greene | 40 images |
| Castilleja sulphurea Rydb. | 25 images |
| Castilleja tenuiflora Benth. | 95 images |
| Castilleja thompsonii Pennell | 9 images |
| Casuarina cunninghamiana Miq. | 1880 images |
| Casuarina equisetifolia L. | 839 images |
| Catalpa bignonioides Walter | 13573 images |
| Catalpa ovata G. Don | 7 images |
| Catalpa speciosa (Warder) Warder ex Engelm. | 4 images |
| Catananche caerulea L. | 3023 images |
| Catharanthus roseus (L.) G. Don | 7 images |
| Catopsis berteroniana (Schult. & Schult. f.) Mez | 7 images |
| Caucalis platycarpos L. | 417 images |
| Caulanthus heterophyllus (Nutt.) Payson | 28 images |
| Caulanthus simulans Payson | 21 images |
| Caulophyllum thalictroides (L.) Michx. | 433 images |
| Cayaponia americana (Lam.) Cogn. | 23 images |
| Cayaponia quinqueloba (Raf.) Shinners | 4 images |
| Cayratia japonica (Thunb.) Gagnep. | 23 images |
| Ceanothus americanus L. | 638 images |
| Ceanothus arboreus Greene | 2092 images |
| Ceanothus cordulatus Kellogg | 56 images |
| Ceanothus crassifolius Torr. | 77 images |
| Ceanothus cuneatus (Hook.) Nutt. | 161 images |
| Ceanothus cyaneus Eastw. | 5 images |
| Ceanothus diversifolius Kellogg | 9 images |
| Ceanothus ferrisiae McMinn | 1 images |
| Ceanothus foliosus Parry | 11 images |
| Ceanothus fresnensis Dudley ex Abrams | 15 images |
| Ceanothus herbaceus Raf. | 31 images |
| Ceanothus impressus Trel. | 1253 images |
| Ceanothus integerrimus Hook. & Arn. | 12 images |
| Ceanothus jepsonii Greene | 25 images |
| Ceanothus lemmonii Parry | 12 images |
| Ceanothus leucodermis Greene | 35 images |
| Ceanothus maritimus Hoover | 10 images |
| Ceanothus megacarpus Nutt. | 44 images |
| Ceanothus microphyllus Michx. | 1 images |
| Ceanothus oliganthus Nutt. | 41 images |
| Ceanothus palmeri Trel. | 2 images |
| Ceanothus parryi Trel. | 8 images |
| Ceanothus prostratus Benth. | 83 images |
| Ceanothus purpureus Jeps. | 4 images |
| Ceanothus sanguineus Pursh | 14 images |
| Ceanothus spinosus Nutt. | 35 images |
| Ceanothus thyrsiflorus Eschsch. | 12 images |
| Ceanothus tomentosus Parry | 74 images |
| Ceanothus velutinus Douglas ex Hook. | 96 images |
| Ceanothus verrucosus Nutt. | 3 images |
| Cedrus deodara (Roxb.) G. Don f. | 4 images |
| Celastrus orbiculatus Thunb. | 674 images |
| Celastrus paniculatus Willd. | 30 images |
| Celastrus scandens L. | 896 images |
| Celosia argentea L. | 9425 images |
| Celosia trigyna L. | 21 images |
| Celtis australis L. | 10315 images |
| Celtis iguanaea (Jacq.) Sarg. | 112 images |
| Celtis laevigata Willd. | 522 images |
| Celtis occidentalis L. | 3435 images |
| Celtis sinensis Pers. | 269 images |
| Celtis tenuifolia Nutt. | 33 images |
| Celtis trinervia Lam. | 19 images |
| Cenchrus agrimonioides Trin. | 6 images |
| Cenchrus biflorus Roxb. | 65 images |
| Cenchrus echinatus L. | 123 images |
| Cenchrus longispinus (Hack.) Fernald | 80 images |
| Cenchrus palmeri Vasey | 1 images |
| Cenchrus spinifex Cav. | 15 images |
| Cenchrus tribuloides L. | 1 images |
| Centaurea americana Nutt. | 4 images |
| Centaurea aspera L. | 3317 images |
| Centaurea calcitrapa L. | 1591 images |
| Centaurea cineraria L. | 737 images |
| Centaurea cyanus L. | 1805 images |
| Centaurea diffusa Lam. | 169 images |
| Centaurea diluta Aiton | 24 images |
| Centaurea eriophora L. | 28 images |
| Centaurea iberica Trevir. ex Spreng. | 51 images |
| Centaurea jacea L. | 13741 images |
| Centaurea macrocephala Puschk. ex Willd. | 3 images |
| Centaurea melitensis L. | 740 images |
| Centaurea montana L. | 1009 images |
| Centaurea nigra L. | 7656 images |
| Centaurea nigrescens Willd. | 656 images |
| Centaurea paniculata L. | 1697 images |
| Centaurea phrygia L. | 403 images |
| Centaurea scabiosa L. | 7957 images |
| Centaurea solstitialis L. | 1229 images |
| Centaurea stoebe L. | 742 images |
| Centaurea sulphurea Willd. | 26 images |
| Centaurea uniflora Turra | 875 images |
| Centaurea virgata Lam. | 31 images |
| Centaurium erythraea Rafn | 7098 images |
| Centaurium pulchellum (Sw.) Druce | 698 images |
| Centaurium spicatum (L.) Fritsch | 4 images |
| Centaurium tenuiflorum (Hoffmanns. & Link) Fritsch | 176 images |
| Centaurium texense (Griseb.) Fernald | 1 images |
| Centella asiatica (L.) Urb. | 955 images |
| Centranthus ruber (L.) DC. | 19126 images |
| Centratherum punctatum Cass. | 497 images |
| Centromadia parryi (Greene) Greene | 17 images |
| Centrosema virginianum (L.) Benth. | 499 images |
| Cephalanthus occidentalis L. | 1212 images |
| Cephalanthus salicifolius Humb. & Bonpl. | 3 images |
| Cerastium arvense L. | 4747 images |
| Cerastium beeringianum Cham. & Schltdl. | 1 images |
| Cerastium dichotomum L. | 11 images |
| Cerastium diffusum Pers. | 132 images |
| Cerastium fontanum Baumg. | 3489 images |
| Cerastium glomeratum Thuill. | 4283 images |
| Cerastium gracile Dufour | 4 images |
| Cerastium nutans Raf. | 6 images |
| Cerastium semidecandrum L. | 456 images |
| Cerastium tomentosum L. | 5780 images |
| Ceratiola ericoides Michx. | 28 images |
| Ceratonia siliqua L. | 5909 images |
| Ceratophyllum demersum L. | 291 images |
| Ceratopteris pteridoides (Hook.) Hieron. | 1 images |
| Ceratopteris richardii Brongn. | 1 images |
| Ceratopteris thalictroides (L.) Brongn. | 40 images |
| Ceratostigma plumbaginoides Bunge | 3361 images |
| Cercidiphyllum japonicum Siebold & Zucc. | 176 images |
| Cercis canadensis L. | 5955 images |
| Cercocarpus ledifolius Nutt. | 18 images |
| Cercocarpus montanus Raf. | 183 images |
| Cestrum diurnum L. | 63 images |
| Cestrum fasciculatum (Schltdl.) Miers | 4 images |
| Cestrum nocturnum L. | 1955 images |
| Cevallia sinuata Lag. | 8 images |
| Chaenactis artemisiifolia (Harv. & A. Gray ex A. Gray) A. Gray | 1 images |
| Chaenactis douglasii (Hook.) Hook. & Arn. | 5 images |
| Chaenactis glabriuscula DC. | 130 images |
| Chaenactis santolinoides Greene | 19 images |
| Chaenactis stevioides Hook. & Arn. | 57 images |
| Chaenomeles japonica (Thunb.) Lindl. ex Spach | 10036 images |
| Chaenomeles speciosa (Sweet) Nakai | 6723 images |
| Chaenorhinum minus (L.) Lange | 635 images |
| Chaerophyllum bulbosum L. | 827 images |
| Chaerophyllum procumbens (L.) Crantz | 15 images |
| Chaerophyllum temulum L. | 4946 images |
| Chamaebatia australis (Brandegee) Abrams | 11 images |
| Chamaebatia foliolosa Benth. | 38 images |
| Chamaebatiaria millefolium (Torr.) Maxim. | 75 images |
| Chamaecrista fasciculata (Michx.) Greene | 810 images |
| Chamaecrista flexuosa (L.) Greene | 46 images |
| Chamaecrista nictitans (L.) Moench | 206 images |
| Chamaecrista rotundifolia (Pers.) Greene | 58 images |
| Chamaecrista serpens (L.) Greene | 3 images |
| Chamaecyparis thyoides (L.) Britton, Sterns & Poggenb. | 72 images |
| Chamaedaphne calyculata (L.) Moench | 152 images |
| Chamaedorea seifrizii Burret | 2151 images |
| Chamaemelum fuscatum (Brot.) Vasc. | 97 images |
| Chamaemelum nobile (L.) All. | 2508 images |
| Chamaerhodos erecta (L.) Bunge | 1 images |
| Chamaesaracha crenata Rydb. | 1 images |
| Chamaesaracha villosa Rydb. | 17 images |
| Chamaesyce hirta (L.) Millsp. | 200 images |
| Chamaesyce hypericifolia (L.) Millsp. | 260 images |
| Chamaesyce hyssopifolia (L.) Small | 14 images |
| Chamaesyce maculata (L.) Small | 1 images |
| Chamaesyce nutans (Lag.) Small | 1 images |
| Chamaesyce prostrata (Aiton) Small | 393 images |
| Chamaesyce serpens (Kunth) Small | 64 images |
| Chamaesyce thymifolia (L.) Millsp. | 4 images |
| Chamerion angustifolium (L.) Holub | 226 images |
| Chamerion latifolium (L.) Holub | 44 images |
| Chaptalia texana Greene | 27 images |
| Chaptalia tomentosa Vent. | 15 images |
| Chasmanthium latifolium (Michx.) Yates | 2 images |
| Cheilanthes aemula Maxon | 1 images |
| Cheilanthes bonariensis (Willd.) Proctor | 6 images |
| Cheilanthes covillei Maxon | 1 images |
| Cheilanthes eatonii Baker | 2 images |
| Cheilanthes lendigera (Cav.) Sw. | 7 images |
| Cheilanthes leucopoda Link | 5 images |
| Cheilanthes lindheimeri Hook. | 3 images |
| Cheilanthes microphylla (Sw.) Sw. | 2 images |
| Chelidonium majus L. | 24194 images |
| Chelone glabra L. | 438 images |
| Chelone lyonii Pursh | 233 images |
| Chelone obliqua L. | 208 images |
| Chenopodium album L. | 14499 images |
| Chenopodium berlandieri Moq. | 47 images |
| Chenopodium bonus-henricus L. | 143 images |
| Chenopodium capitatum (L.) Asch. | 49 images |
| Chenopodium chenopodioides (L.) Aellen | 9 images |
| Chenopodium ficifolium Sm. | 1274 images |
| Chenopodium glaucum L. | 20 images |
| Chenopodium murale L. | 335 images |
| Chenopodium polyspermum L. | 104 images |
| Chenopodium pratericola Rydb. | 17 images |
| Chenopodium rubrum L. | 72 images |
| Chenopodium standleyanum Aellen | 3 images |
| Chenopodium urbicum L. | 2 images |
| Chenopodium vulvaria L. | 758 images |
| Chilopsis linearis (Cav.) Sweet | 382 images |
| Chimaphila maculata (L.) Pursh | 734 images |
| Chiococca alba (L.) Hitchc. | 164 images |
| Chionanthus pygmaeus Small | 10 images |
| Chionanthus virginicus L. | 613 images |
| Chionodoxa luciliae Boiss. | 102 images |
| Chionophila jamesii Benth. | 4 images |
| Chloris barbata Sw. | 255 images |
| Chloris ciliata Sw. | 3 images |
| Chloris cucullata Bisch. | 5 images |
| Chloris gayana Kunth | 117 images |
| Chloris radiata (L.) Sw. | 14 images |
| Chloris verticillata Nutt. | 31 images |
| Chloris virgata Sw. | 65 images |
| Chlorogalum angustifolium Kellogg | 3 images |
| Chlorogalum pomeridianum (DC.) Kunth | 235 images |
| Chlorogalum purpureum Brandegee | 2 images |
| Chlorophytum capense (L.) Voss | 1511 images |
| Chlorophytum comosum (Thunb.) Jacq. | 3 images |
| Chondrilla juncea L. | 1882 images |
| Chorispora tenella (Pall.) DC. | 195 images |
| Chorizanthe angustifolia Nutt. | 2 images |
| Chorizanthe biloba Goodman | 1 images |
| Chorizanthe blakleyi Hardham | 1 images |
| Chorizanthe brevicornu Torr. | 28 images |
| Chorizanthe diffusa Benth. | 2 images |
| Chorizanthe douglasii Benth. | 21 images |
| Chorizanthe fimbriata Nutt. | 29 images |
| Chorizanthe howellii Goodman | 3 images |
| Chorizanthe membranacea Benth. | 30 images |
| Chorizanthe orcuttiana Parry | 23 images |
| Chorizanthe procumbens Nutt. | 20 images |
| Chorizanthe pungens Benth. | 20 images |
| Chorizanthe robusta Parry | 2 images |
| Chorizanthe staticoides Benth. | 57 images |
| Chrysanthemum arcticum L. | 3 images |
| Chrysobalanus icaco L. | 435 images |
| Chrysogonum virginianum L. | 177 images |
| Chrysophyllum cainito L. | 426 images |
| Chrysophyllum oliviforme L. | 36 images |
| Chrysopogon aciculatus (Retz.) Trin. | 20 images |
| Chrysopsis floridana Small | 5 images |
| Chrysopsis subulata Small | 9 images |
| Chrysosplenium alternifolium L. | 1806 images |
| Chrysosplenium americanum Schwein. ex Hook. | 24 images |
| Chrysosplenium glechomifolium Nutt. | 1 images |
| Chrysothamnus viscidiflorus (Hook.) Nutt. | 214 images |
| Cicendia quadrangularis (Lam.) Griseb. | 5 images |
| Cicer arietinum L. | 846 images |
| Cichorium endivia L. | 8354 images |
| Cichorium intybus L. | 19192 images |
| Cicuta bulbifera L. | 34 images |
| Cicuta maculata L. | 307 images |
| Cienfuegosia yucatanensis Millsp. | 6 images |
| Cinna arundinacea L. | 15 images |
| Cinnamomum camphora (L.) J. Presl | 9 images |
| Circaea alpina L. | 241 images |
| Circaea lutetiana L. | 5593 images |
| Cirsium altissimum (L.) Hill | 8 images |
| Cirsium arvense (L.) Scop. | 15160 images |
| Cirsium brevistylum Cronquist | 66 images |
| Cirsium canum (L.) All. | 98 images |
| Cirsium discolor (Muhl. ex Willd.) Spreng. | 191 images |
| Cirsium douglasii DC. | 14 images |
| Cirsium edule Nutt. | 36 images |
| Cirsium hookerianum Nutt. | 13 images |
| Cirsium horridulum Michx. | 240 images |
| Cirsium mohavense (Greene) Petr. | 9 images |
| Cirsium muticum Michx. | 69 images |
| Cirsium nuttallii DC. | 6 images |
| Cirsium occidentale (Nutt.) Jeps. | 2 images |
| Cirsium palustre (L.) Scop. | 3803 images |
| Cirsium pyrenaicum (Jacq.) All. | 42 images |
| Cirsium scabrum (Poir.) Bonnet & Barratte | 18 images |
| Cirsium scariosum Nutt. | 7 images |
| Cirsium subniveum Rydb. | 3 images |
| Cirsium texanum Buckley | 220 images |
| Cirsium vulgare (Savi) Ten. | 19514 images |
| Cissampelos pareira L. | 109 images |
| Cissus trifoliata (L.) L. | 10 images |
| Cistus ladanifer L. | 3136 images |
| Cistus monspeliensis L. | 4881 images |
| Cistus salviifolius L. | 8555 images |
| Citharexylum spinosum L. | 456 images |
| Citrullus colocynthis (L.) Schrad. | 416 images |
| Citrullus lanatus (Thunb.) Matsum. & Nakai | 2183 images |
| Citrus medica L. | 938 images |
| Citrus reticulata Blanco | 42 images |
| Cladium mariscoides (Muhl.) Torr. | 3 images |
| Cladium mariscus (L.) Pohl | 274 images |
| Cladrastis kentukea (Dum. Cours.) Rudd | 6 images |
| Clarkia amoena (Lehm.) A. Nelson & J.F. Macbr. | 2 images |
| Clarkia modesta Jeps. | 11 images |
| Clarkia pulchella Pursh | 49 images |
| Clarkia springvillensis Vasek | 4 images |
| Clarkia tembloriensis Vasek | 4 images |
| Clarkia unguiculata Lindl. | 930 images |
| Clarkia virgata Greene | 1 images |
| Claytonia caroliniana Michx. | 285 images |
| Claytonia perfoliata Donn ex Willd. | 3121 images |
| Claytonia rosea Rydb. | 9 images |
| Claytonia rubra (Howell) Tidestr. | 70 images |
| Claytonia saxosa Brandegee | 2 images |
| Claytonia sibirica L. | 873 images |
| Claytonia virginica L. | 1143 images |
| Cleistes divaricata (L.) Ames | 3 images |
| Clematis crispa L. | 96 images |
| Clematis florida Thunb. | 20 images |
| Clematis hirsutissima Pursh | 33 images |
| Clematis lasiantha Nutt. | 181 images |
| Clematis ligusticifolia Nutt. | 87 images |
| Clematis occidentalis (Hornem.) DC. | 47 images |
| Clematis ochroleuca Aiton | 10 images |
| Clematis orientalis L. | 79 images |
| Clematis pauciflora Nutt. | 34 images |
| Clematis recta L. | 776 images |
| Clematis terniflora DC. | 869 images |
| Clematis texensis Buckley | 76 images |
| Clematis viorna L. | 75 images |
| Clematis virginiana L. | 786 images |
| Clematis vitalba L. | 18423 images |
| Clematis viticella L. | 5031 images |
| Cleome aculeata L. | 47 images |
| Cleome gynandra L. | 395 images |
| Cleome ornithopodioides L. | 4 images |
| Cleome rutidosperma DC. | 458 images |
| Cleome serrata Jacq. | 18 images |
| Cleome serrulata Pursh | 31 images |
| Cleome speciosa Raf. | 28 images |
| Cleome spinosa Jacq. | 991 images |
| Cleome viscosa L. | 442 images |
| Clerodendrum bungei Steud. | 1110 images |
| Clerodendrum indicum (L.) Kuntze | 203 images |
| Clerodendrum japonicum (Thunb.) Sweet | 22 images |
| Clerodendrum trichotomum Thunb. | 3205 images |
| Clerodendrum umbellatum Poir. | 127 images |
| Clethra acuminata Michx. | 27 images |
| Clethra alnifolia L. | 846 images |
| Cleyera japonica Thunb. | 16 images |
| Clinopodium arkansanum (Nutt.) House | 1 images |
| Clinopodium ascendens (Jord.) Samp. | 1 images |
| Clinopodium brownei (Sw.) Kuntze | 23 images |
| Clinopodium glabellum (Michx.) Kuntze | 14 images |
| Clinopodium gracile (Benth.) Kuntze | 42 images |
| Clinopodium mimuloides (Benth.) Kuntze | 2 images |
| Clinopodium vulgare L. | 7282 images |
| Clintonia andrewsiana Torr. | 76 images |
| Clintonia borealis (Aiton) Raf. | 679 images |
| Clintonia umbellulata (Michx.) Morong | 30 images |
| Clitoria mariana L. | 127 images |
| Clitoria ternatea L. | 1472 images |
| Clusia rosea Jacq. | 1573 images |
| Cnicus benedictus L. | 1 images |
| Cnidoscolus angustidens Torr. | 45 images |
| Cnidoscolus urens (L.) Arthur | 266 images |
| Coccinia grandis (L.) Voigt | 754 images |
| Coccocypselum hirsutum Bartl. ex DC. | 70 images |
| Coccoloba diversifolia Jacq. | 32 images |
| Coccoloba uvifera (L.) L. | 2162 images |
| Cocculus carolinus (L.) DC. | 338 images |
| Cochlearia groenlandica L. | 8 images |
| Cocos nucifera L. | 2441 images |
| Codiaeum variegatum (L.) A. Juss. | 1 images |
| Coelorachis cylindrica (Michx.) Nash | 1 images |
| Coincya monensis (L.) Greuter & Burdet | 300 images |
| Coix lacryma-jobi L. | 343 images |
| Colchicum autumnale L. | 6091 images |
| Coleogyne ramosissima Torr. | 46 images |
| Collinsia bartsiifolia Benth. | 49 images |
| Collinsia concolor Greene | 29 images |
| Collinsia corymbosa Herder | 8 images |
| Collinsia heterophylla Buist ex Graham | 3 images |
| Collinsia tinctoria Hartw. ex Benth. | 57 images |
| Collinsia verna Nutt. | 70 images |
| Collinsia violacea Nutt. | 11 images |
| Collinsonia canadensis L. | 111 images |
| Collomia diversifolia Greene | 8 images |
| Collomia grandiflora Douglas ex Lindl. | 300 images |
| Collomia linearis Nutt. | 34 images |
| Collomia mazama Coville | 2 images |
| Collomia rawsoniana Greene | 1 images |
| Collomia tinctoria Kellogg | 5 images |
| Colocasia esculenta (L.) Schott | 5068 images |
| Cologania angustifolia Kunth | 9 images |
| Cologania obovata Schltdl. | 7 images |
| Colubrina arborescens (Mill.) Sarg. | 25 images |
| Colubrina asiatica (L.) Brongn. | 43 images |
| Colutea arborescens L. | 3175 images |
| Comandra umbellata (L.) Nutt. | 84 images |
| Comarostaphylis diversifolia (Parry) Greene | 61 images |
| Comarum palustre L. | 994 images |
| Commelina benghalensis L. | 726 images |
| Commelina caroliniana Walter | 8 images |
| Commelina coelestis Willd. | 109 images |
| Commelina communis L. | 1960 images |
| Commelina diffusa Burm. f. | 257 images |
| Commelina erecta L. | 1727 images |
| Commelina forskaolii Vahl | 106 images |
| Commelina nigritana Benth. | 12 images |
| Commelina virginica L. | 52 images |
| Conium maculatum L. | 7409 images |
| Conocarpus erectus L. | 689 images |
| Conoclinium coelestinum (L.) DC. | 15 images |
| Conopholis alpina Liebm. | 52 images |
| Conopholis americana (L.) Wallr. | 304 images |
| Conradina grandiflora Small | 5 images |
| Conradina verticillata Jennison | 4 images |
| Conringia orientalis (L.) Dumort. | 75 images |
| Consolida ajacis (L.) Schur | 545 images |
| Consolida regalis Gray | 248 images |
| Convallaria majalis L. | 6685 images |
| Convallaria majuscula Greene | 3 images |
| Convolvulus althaeoides L. | 3435 images |
| Convolvulus arvensis L. | 16085 images |
| Convolvulus equitans Benth. | 141 images |
| Convolvulus tricolor L. | 1877 images |
| Conyza bonariensis (L.) Cronquist | 491 images |
| Conyza canadensis (L.) Cronquist | 3599 images |
| Conyza floribunda Kunth | 11 images |
| Conyza ramosissima Cronquist | 21 images |
| Cooperia pedunculata Herb. | 1 images |
| Coptis trifolia (L.) Salisb. | 240 images |
| Corallorhiza maculata (Raf.) Raf. | 1 images |
| Corallorhiza mertensiana Bong. | 113 images |
| Corallorhiza striata Lindl. | 130 images |
| Corallorhiza wisteriana Conrad | 33 images |
| Corchoropsis crenata Siebold & Zucc. | 2 images |
| Corchorus aestuans L. | 121 images |
| Corchorus hirsutus L. | 7 images |
| Corchorus hirtus L. | 21 images |
| Corchorus siliquosus L. | 25 images |
| Corchorus tridens L. | 22 images |
| Cordia boissieri A. DC. | 1 images |
| Cordia curassavica (Jacq.) Roem. & Schult. | 32 images |
| Cordia myxa L. | 201 images |
| Cordia sebestena L. | 856 images |
| Cordia subcordata Lam. | 217 images |
| Cordylanthus parviflorus (Ferris) Wiggins | 15 images |
| Cordylanthus rigidus (Benth.) Jeps. | 36 images |
| Cordyline australis (G. Forst.) Endl. | 1 images |
| Coreopsis auriculata L. | 116 images |
| Coreopsis gladiata Walter | 13 images |
| Coreopsis grandiflora Hogg ex Sweet | 2438 images |
| Coreopsis lanceolata L. | 2601 images |
| Coreopsis leavenworthii Torr. & A. Gray | 1 images |
| Coreopsis linifolia Nutt. | 2 images |
| Coreopsis major Walter | 127 images |
| Coreopsis palmata Nutt. | 64 images |
| Coreopsis pubescens Elliott | 22 images |
| Coreopsis rosea Nutt. | 5 images |
| Coreopsis tinctoria Nutt. | 3013 images |
| Coreopsis tripteris L. | 158 images |
| Coreopsis verticillata L. | 1806 images |
| Corethrogyne filaginifolia (Hook. & Arn.) Nutt. | 138 images |
| Coriandrum sativum L. | 3081 images |
| Corispermum americanum (Nutt.) Nutt. | 2 images |
| Corispermum hyssopifolium L. | 2 images |
| Corispermum pallasii Steven | 103 images |
| Cornus alternifolia L. f. | 1 images |
| Cornus amomum Mill. | 548 images |
| Cornus asperifolia Michx. | 2 images |
| Cornus canadensis L. | 1321 images |
| Cornus florida L. | 5174 images |
| Cornus foemina Mill. | 37 images |
| Cornus glabrata Benth. | 8 images |
| Cornus kousa Hance | 12 images |
| Cornus mas L. | 11115 images |
| Cornus racemosa Lam. | 429 images |
| Cornus rugosa Lam. | 158 images |
| Cornus sanguinea L. | 26174 images |
| Cornus sericea L. | 6827 images |
| Cornus unalaschkensis Ledeb. | 6 images |
| Coronilla valentina L. | 3496 images |
| Coronopus didymus (L.) Sm. | 19 images |
| Corrigiola litoralis L. | 368 images |
| Cortaderia selloana (Schult. & Schult. f.) Asch. & Graebn. | 1 images |
| Corydalis aurea Willd. | 93 images |
| Corydalis flavula (Raf.) DC. | 96 images |
| Corydalis incisa (Thunb.) Pers. | 16 images |
| Corydalis scouleri Hook. | 31 images |
| Corydalis sempervirens (L.) Pers. | 81 images |
| Corydalis solida (L.) Clairv. | 5424 images |
| Corylus americana Walter | 62 images |
| Corylus avellana L. | 20688 images |
| Corylus cornuta Marshall | 977 images |
| Corylus heterophylla Fisch. ex Trautv. | 3 images |
| Coryphantha ramillosa Cutak | 8 images |
| Coryphantha recurvata (Engelm.) Britton & Rose | 2 images |
| Coryphantha sulcata (Engelm.) Britton & Rose | 7 images |
| Cosmos bipinnatus Cav. | 12752 images |
| Cosmos caudatus Kunth | 838 images |
| Cosmos parviflorus (Jacq.) Pers. | 27 images |
| Cosmos sulphureus Cav. | 3887 images |
| Cotinus coggygria Scop. | 12630 images |
| Cotinus obovatus Raf. | 294 images |
| Cotoneaster acuminatus Lindl. | 41 images |
| Cotoneaster acutifolius Turcz. | 202 images |
| Cotoneaster adpressus Bois | 35 images |
| Cotoneaster horizontalis Decne. | 5410 images |
| Cotoneaster lucidus Schltdl. | 534 images |
| Cotoneaster multiflorus Bunge | 352 images |
| Cotoneaster pannosus Franch. | 930 images |
| Cotoneaster simonsii Baker | 51 images |
| Cotula australis (Sieber ex Spreng.) Hook. f. | 1 images |
| Cotula coronopifolia L. | 481 images |
| Cotula mexicana (DC.) Cabrera | 9 images |
| Cotyledon orbiculata L. | 4109 images |
| Coursetia caribaea (Jacq.) Lavin | 48 images |
| Crambe maritima L. | 1857 images |
| Cranichis muscosa Sw. | 10 images |
| Crassula multicava Lem. | 2538 images |
| Crataegus brainerdii Sarg. | 3 images |
| Crataegus calpodendron (Ehrh.) Medik. | 10 images |
| Crataegus chrysocarpa Ashe | 6 images |
| Crataegus coccinioides Ashe | 19 images |
| Crataegus crus-galli L. | 603 images |
| Crataegus douglasii Lindl. | 354 images |
| Crataegus harbisonii Beadle | 53 images |
| Crataegus holmesiana Ashe | 16 images |
| Crataegus intricata Lange | 8 images |
| Crataegus irrasa Sarg. | 3 images |
| Crataegus laevigata (Poir.) DC. | 11900 images |
| Crataegus macrosperma Ashe | 9 images |
| Crataegus marshallii Eggl. | 83 images |
| Crataegus mollis Scheele | 1 images |
| Crataegus monogyna Jacq. | 24487 images |
| Crataegus pedicellata Sarg. | 4 images |
| Crataegus pennsylvanica Ashe | 5 images |
| Crataegus persimilis Sarg. | 475 images |
| Crataegus punctata Jacq. | 70 images |
| Crataegus scabrida Sarg. | 2 images |
| Crataegus submollis Sarg. | 68 images |
| Crataegus succulenta Schrad. ex Link | 14 images |
| Crataegus tracyi Ashe ex Eggl. | 7 images |
| Crataegus uniflora Münchh. | 16 images |
| Crataegus viridis L. | 23 images |
| Crepis acuminata Nutt. | 40 images |
| Crepis biennis L. | 4112 images |
| Crepis bursifolia L. | 1799 images |
| Crepis capillaris (L.) Wallr. | 8984 images |
| Crepis foetida L. | 1867 images |
| Crepis modocensis Greene | 6 images |
| Crepis monticola Coville | 2 images |
| Crepis occidentalis Nutt. | 45 images |
| Crepis pulchra L. | 788 images |
| Crepis rubra L. | 408 images |
| Crepis setosa Haller f. | 2290 images |
| Crepis tectorum L. | 233 images |
| Crepis vesicaria L. | 3060 images |
| Crescentia cujete L. | 1494 images |
| Cressa nudicaulis Griseb. | 2 images |
| Cressa truxillensis Kunth | 19 images |
| Crinum americanum L. | 333 images |
| Crinum asiaticum L. | 1532 images |
| Crinum zeylanicum (L.) L. | 13 images |
| Crocidium multicaule Hook. | 19 images |
| Crocus angustifolius Weston | 30 images |
| Crocus flavus Weston | 1124 images |
| Crocus imperati Ten. | 52 images |
| Crocus tommasinianus Herb. | 2324 images |
| Crocus vernus (L.) Hill | 5928 images |
| Croptilon divaricatum (Nutt.) Raf. | 9 images |
| Crossopetalum rhacoma Crantz | 22 images |
| Crossosoma californicum Nutt. | 2 images |
| Crotalaria brevidens Benth. | 67 images |
| Crotalaria incana L. | 207 images |
| Crotalaria juncea L. | 124 images |
| Crotalaria pallida Aiton | 387 images |
| Crotalaria pumila Ortega | 65 images |
| Crotalaria purshii DC. | 1 images |
| Crotalaria retusa L. | 574 images |
| Crotalaria sagittalis L. | 55 images |
| Crotalaria spectabilis Roth | 158 images |
| Crotalaria trichotoma Bojer | 19 images |
| Crotalaria verrucosa L. | 48 images |
| Croton argenteus L. | 27 images |
| Croton argyranthemus Michx. | 3 images |
| Croton bonplandianus Baill. | 85 images |
| Croton capitatus Michx. | 206 images |
| Croton ciliatoglandulifer Ortega | 28 images |
| Croton cortesianus Kunth | 4 images |
| Croton dioicus Cav. | 5 images |
| Croton glandulosus L. | 71 images |
| Croton humilis L. | 3 images |
| Croton incanus Kunth | 9 images |
| Croton lobatus L. | 21 images |
| Croton monanthogynus Michx. | 105 images |
| Croton punctatus Jacq. | 22 images |
| Croton setigerus Hook. | 1 images |
| Croton sonorae Torr. | 2 images |
| Croton trinitatis Millsp. | 43 images |
| Crucianella angustifolia L. | 107 images |
| Cruciata laevipes Opiz | 4775 images |
| Cruciata pedemontana (Bellardi) Ehrend. | 121 images |
| Crupina vulgaris Cass. | 254 images |
| Crypsis alopecuroides (Piller & Mitterp.) Schrad. | 54 images |
| Crypsis schoenoides (L.) Lam. | 88 images |
| Crypsis vaginiflora (Forssk.) Opiz | 4 images |
| Cryptantha angustifolia (Torr.) Greene | 3 images |
| Cryptantha clevelandii Greene | 35 images |
| Cryptantha confertiflora (Greene) Payson | 58 images |
| Cryptantha crinita Greene | 7 images |
| Cryptantha flaccida (Douglas ex Lehm.) Greene | 8 images |
| Cryptantha minima Rydb. | 1 images |
| Cryptantha nemaclada Greene | 1 images |
| Cryptantha pterocarya (Torr.) Greene | 39 images |
| Cryptantha spiculifera (Piper) Payson | 1 images |
| Cryptantha thyrsiflora (Greene) Payson | 3 images |
| Cryptantha virgata (Porter) Payson | 19 images |
| Cryptocoryne walkeri Schott | 1 images |
| Cryptocoryne wendtii de Wit | 35 images |
| Cryptogramma acrostichoides R. Br. | 31 images |
| Cryptostegia madagascariensis Bojer ex Decne. | 333 images |
| Cryptotaenia canadensis (L.) DC. | 219 images |
| Ctenitis submarginalis (Langsd. & Fisch.) Ching | 38 images |
| Cucumis anguria L. | 179 images |
| Cucumis dipsaceus C.G. Ehrenb. ex Spach | 33 images |
| Cucumis melo L. | 4360 images |
| Cucumis sativus L. | 4597 images |
| Cucurbita ficifolia Bouché | 159 images |
| Cucurbita foetidissima Kunth | 256 images |
| Cucurbita maxima Duchesne | 4841 images |
| Cucurbita moschata Duchesne | 2526 images |
| Cucurbita pepo L. | 5066 images |
| Cudrania tricuspidata (Carrière) Bureau ex Lavallée | 23 images |
| Cullen americanum (L.) Rydb. | 1 images |
| Cuminum cyminum L. | 58 images |
| Cunila origanoides (L.) Britton | 47 images |
| Cunninghamia lanceolata (Lamb.) Hook. | 576 images |
| Cupania glabra Sw. | 36 images |
| Cupaniopsis anacardioides (A. Rich.) Radlk. | 9 images |
| Cuphea aspera Chapm. | 30 images |
| Cuphea carthagenensis (Jacq.) J.F. Macbr. | 1 images |
| Cuphea glutinosa Cham. & Schltdl. | 37 images |
| Cuphea procumbens Ortega | 13 images |
| Cuphea strigulosa Kunth | 16 images |
| Cuphea viscosissima Jacq. | 45 images |
| Curculigo capitulata (Lour.) Kuntze | 58 images |
| Curcuma zedoaria (Christm.) Roscoe | 220 images |
| Cuscuta americana L. | 24 images |
| Cuscuta approximata Bab. | 34 images |
| Cuscuta californica Hook. & Arn. | 5 images |
| Cuscuta cephalanthi Engelm. | 3 images |
| Cuscuta compacta Juss. ex Choisy | 1 images |
| Cuscuta denticulata Engelm. | 16 images |
| Cuscuta epilinum Weihe | 14 images |
| Cuscuta epithymum (L.) L. | 1063 images |
| Cuscuta europaea L. | 286 images |
| Cuscuta exaltata Engelm. | 4 images |
| Cuscuta glomerata Choisy | 2 images |
| Cuscuta gronovii Willd. ex Schult. | 4 images |
| Cuscuta indecora Choisy | 15 images |
| Cuscuta japonica Choisy | 10 images |
| Cuscuta pentagona Engelm. | 12 images |
| Cuscuta polygonorum Engelm. | 2 images |
| Cuscuta reflexa Roxb. | 19 images |
| Cuscuta salina Engelm. | 74 images |
| Cuscuta suaveolens Ser. | 1 images |
| Cuscuta suksdorfii Yunck. | 4 images |
| Cuscuta umbellata Kunth | 4 images |
| Cusickiella quadricostata (Rollins) Rollins | 14 images |
| Cycas circinalis L. | 384 images |
| Cycas revoluta Thunb. | 5703 images |
| Cyclachaena xanthiifolia (Nutt.) Fresen. | 12 images |
| Cycladenia humilis Benth. | 24 images |
| Cyclopogon cranichoides (Griseb.) Schltr. | 2 images |
| Cyclopogon elatus (Sw.) Schltr. | 8 images |
| Cyclospermum leptophyllum (Pers.) Sprague ex Britton & P. Wilson | 4 images |
| Cydista aequinoctialis (L.) Miers | 14 images |
| Cydonia oblonga Mill. | 9660 images |
| Cylindropuntia imbricata (Haw.) F.M. Knuth | 111 images |
| Cymbopogon citratus (DC. ex Nees) Stapf | 1 images |
| Cymopterus macrorhizus Buckley | 18 images |
| Cynanchum laeve (Michx.) Pers. | 176 images |
| Cynanchum ligulatum (Benth.) Woodson | 5 images |
| Cynanchum louiseae Kartesz & Gandhi | 1 images |
| Cynanchum racemosum (Jacq.) Jacq. | 16 images |
| Cynara cardunculus L. | 6322 images |
| Cynara scolymus L. | 55 images |
| Cynodon dactylon (L.) Pers. | 2383 images |
| Cynodon nlemfuensis Vanderyst | 30 images |
| Cynodon plectostachyus (K. Schum.) Pilg. | 56 images |
| Cynoglossum amabile Stapf & J.R. Drumm. | 3 images |
| Cynoglossum grande Douglas ex Lehm. | 355 images |
| Cynoglossum microglochin Benth. | 15 images |
| Cynoglossum officinale L. | 2841 images |
| Cynoglossum virginianum L. | 179 images |
| Cynosurus cristatus L. | 630 images |
| Cynosurus echinatus L. | 538 images |
| Cyperus aggregatus (Willd.) Endl. | 47 images |
| Cyperus alopecuroides Rottb. | 52 images |
| Cyperus amabilis Vahl | 4 images |
| Cyperus articulatus L. | 26 images |
| Cyperus bipartitus Torr. | 4 images |
| Cyperus compressus L. | 42 images |
| Cyperus difformis L. | 107 images |
| Cyperus digitatus Roxb. | 3 images |
| Cyperus entrerianus Boeckeler | 12 images |
| Cyperus eragrostis Lam. | 2286 images |
| Cyperus esculentus L. | 785 images |
| Cyperus flavescens L. | 58 images |
| Cyperus flavicomus Michx. | 5 images |
| Cyperus fuscus L. | 310 images |
| Cyperus giganteus Vahl | 34 images |
| Cyperus granitophilus McVaugh | 1 images |
| Cyperus haspan L. | 120 images |
| Cyperus hermaphroditus (Jacq.) Standl. | 13 images |
| Cyperus involucratus Rottb. | 12 images |
| Cyperus iria L. | 43 images |
| Cyperus javanicus Houtt. | 33 images |
| Cyperus laevigatus L. | 46 images |
| Cyperus lanceolatus Poir. | 6 images |
| Cyperus ligularis L. | 49 images |
| Cyperus niger Ruiz & Pav. | 6 images |
| Cyperus ochraceus Vahl | 7 images |
| Cyperus odoratus L. | 109 images |
| Cyperus papyrus L. | 1180 images |
| Cyperus polystachyos Rottb. | 10 images |
| Cyperus prolifer Lam. | 7 images |
| Cyperus prolixus Kunth | 3 images |
| Cyperus pseudovegetus Steud. | 5 images |
| Cyperus reflexus Vahl | 3 images |
| Cyperus rotundus L. | 898 images |
| Cyperus sanguinolentus Vahl | 2 images |
| Cyperus serotinus Rottb. | 5 images |
| Cyperus seslerioides Kunth | 4 images |
| Cyperus sphacelatus Rottb. | 15 images |
| Cyperus squarrosus L. | 25 images |
| Cyperus strigosus L. | 276 images |
| Cyperus surinamensis Rottb. | 19 images |
| Cyperus tenuis Sw. | 17 images |
| Cyperus virens Michx. | 11 images |
| Cyphomeris crassifolia (Standl.) Standl. | 2 images |
| Cypripedium acaule Aiton | 816 images |
| Cypripedium candidum Muhl. ex Willd. | 44 images |
| Cypripedium montanum Douglas ex Lindl. | 95 images |
| Cypripedium parviflorum Salisb. | 295 images |
| Cypripedium passerinum Richardson | 14 images |
| Cypripedium reginae Walter | 184 images |
| Cyrilla racemiflora L. | 70 images |
| Cyrtomium falcatum (L. f.) C. Presl | 316 images |
| Cyrtopodium punctatum (L.) Lindl. | 16 images |
| Cystopteris bulbifera (L.) Bernh. | 87 images |
| Cystopteris fragilis (L.) Bernh. | 1004 images |
| Cystopteris montana (Lam.) Bernh. ex Desv. | 1 images |
| Cystopteris protrusa (Weath.) Blasdell | 34 images |
| Cystopteris tenuis (Michx.) Desv. | 3 images |
| Cytisus multiflorus (L'Hér.) Sweet | 355 images |
| Cytisus scoparius (L.) Link | 10928 images |
| Cytisus striatus (Hill) Rothm. | 611 images |
| Cytisus villosus Pourr. | 870 images |
| Dactylis glomerata L. | 9142 images |
| Dactyloctenium aegyptium (L.) Willd. | 387 images |
| Dahlia pinnata Cav. | 13178 images |
| Dalbergia sissoo Roxb. ex DC. | 36 images |
| Dalea bicolor Humb. & Bonpl. ex Willd. | 3 images |
| Dalea compacta Spreng. | 16 images |
| Dalea cylindriceps Barneby | 6 images |
| Dalea formosa Torr. | 61 images |
| Dalea lanata Spreng. | 4 images |
| Dalea leporina (Aiton) Bullock | 22 images |
| Dalea mollis Benth. | 36 images |
| Dalea mollissima (Rydb.) Munz | 8 images |
| Dalea multiflora (Nutt.) Shinners | 14 images |
| Dalea pulchra Gentry | 7 images |
| Dalea purpurea Vent. | 224 images |
| Dalea versicolor Zucc. | 11 images |
| Dalea villosa (Nutt.) Spreng. | 3 images |
| Dalibarda repens L. | 24 images |
| Danthonia californica Bol. | 17 images |
| Danthonia compressa Austin | 3 images |
| Danthonia decumbens (L.) DC. | 85 images |
| Danthonia intermedia Vasey | 2 images |
| Danthonia unispicata (Thurb.) Munro ex Macoun | 21 images |
| Daphne cneorum L. | 1321 images |
| Daphne laureola L. | 3759 images |
| Daphne mezereum L. | 4225 images |
| Darlingtonia californica Torr. | 202 images |
| Darmera peltata (Torr. ex Benth.) Voss | 650 images |
| Dasiphora fruticosa (L.) Rydb. | 5853 images |
| Dasistoma macrophylla (Nutt.) Raf. | 50 images |
| Dasylirion leiophyllum Engelm. ex Trel. | 41 images |
| Dasylirion texanum Scheele | 77 images |
| Datura ceratocaula Ortega | 10 images |
| Datura discolor Bernh. | 30 images |
| Datura inoxia Mill. | 700 images |
| Datura stramonium L. | 14001 images |
| Datura wrightii Regel | 1218 images |
| Daucus carota L. | 24119 images |
| Daucus pusillus Michx. | 192 images |
| Decodon verticillatus (L.) Elliott | 48 images |
| Decumaria barbara L. | 30 images |
| Delairea odorata Lem. | 705 images |
| Delonix regia (Bojer ex Hook.) Raf. | 2845 images |
| Delphinium barbeyi (Huth) Huth | 9 images |
| Delphinium bicolor Nutt. | 9 images |
| Delphinium cardinale Hook. | 47 images |
| Delphinium carolinianum Walter | 147 images |
| Delphinium depauperatum Nutt. | 9 images |
| Delphinium elatum L. | 4204 images |
| Delphinium exaltatum Aiton | 16 images |
| Delphinium geraniifolium Rydb. | 5 images |
| Delphinium glareosum Greene | 4 images |
| Delphinium gracilentum Greene | 5 images |
| Delphinium grandiflorum L. | 40 images |
| Delphinium gypsophilum Ewan | 15 images |
| Delphinium hansenii (Greene) Greene | 29 images |
| Delphinium hutchinsoniae Ewan | 11 images |
| Delphinium menziesii DC. | 47 images |
| Delphinium nuttallianum Pritz. ex Walp. | 151 images |
| Delphinium patens Benth. | 66 images |
| Delphinium polycladon Eastw. | 21 images |
| Delphinium purpusii Brandegee | 3 images |
| Delphinium recurvatum Greene | 15 images |
| Delphinium scaposum Greene | 14 images |
| Delphinium tricorne Michx. | 200 images |
| Delphinium wootonii Rydb. | 4 images |
| Dendromecon harfordii Kellogg | 22 images |
| Dendromecon rigida Benth. | 179 images |
| Dendrophylax lindenii (Lindl.) Benth. ex Rolfe | 8 images |
| Dennstaedtia bipinnata (Cav.) Maxon | 4 images |
| Dennstaedtia cicutaria (Sw.) T. Moore | 24 images |
| Dennstaedtia punctilobula (Michx.) T. Moore | 187 images |
| Deparia petersenii (Kunze) M. Kato | 27 images |
| Derris elliptica (Wall.) Benth. | 9 images |
| Deschampsia elongata (Hook.) Munro | 3 images |
| Deschampsia flexuosa (L.) Trin. | 101 images |
| Descurainia pinnata (Walter) Britton | 156 images |
| Descurainia sophia (L.) Webb ex Prantl | 751 images |
| Desmanthus illinoensis (Michx.) MacMill. ex B.L. Rob. & Fernald | 3 images |
| Desmanthus leptophyllus Kunth | 12 images |
| Desmanthus pernambucanus (L.) Thell. | 9 images |
| Desmanthus velutinus Scheele | 8 images |
| Desmanthus virgatus (L.) Willd. | 209 images |
| Desmodium canadense (L.) DC. | 182 images |
| Desmodium canescens (L.) DC. | 6 images |
| Desmodium glabellum (Michx.) DC. | 7 images |
| Desmodium incanum DC. | 259 images |
| Desmodium intortum (Mill.) Urb. | 167 images |
| Desmodium lindheimeri Vail | 3 images |
| Desmodium paniculatum (L.) DC. | 474 images |
| Desmodium psilophyllum Schltdl. | 1 images |
| Desmodium tortuosum (Sw.) DC. | 140 images |
| Desmodium triflorum (L.) DC. | 287 images |
| Desmodium tweedyi Britton | 7 images |
| Deutzia crenata Siebold & Zucc. | 148 images |
| Deutzia gracilis Siebold & Zucc. | 2224 images |
| Deutzia parviflora Bunge | 4 images |
| Deutzia scabra Thunb. | 6425 images |
| Dianella caerulea Sims | 137 images |
| Dianthus armeria L. | 2190 images |
| Dianthus barbatus L. | 10044 images |
| Dianthus carthusianorum L. | 5730 images |
| Dianthus caryophyllus L. | 6124 images |
| Dianthus deltoides L. | 3707 images |
| Dianthus plumarius L. | 1299 images |
| Dianthus sylvestris Wulfen | 1378 images |
| Diapensia lapponica L. | 33 images |
| Dicentra canadensis (Goldie) Walp. | 148 images |
| Dicentra cucullaria (L.) Bernh. | 612 images |
| Dicentra eximia (Ker Gawl.) Torr. | 92 images |
| Dicentra formosa (Haw.) Walp. | 568 images |
| Dicentra nevadensis Eastw. | 4 images |
| Dicentra uniflora Kellogg | 44 images |
| Dicerandra frutescens Shinners | 2 images |
| Dichanthelium clandestinum (L.) Gould | 139 images |
| Dichanthelium oligosanthes (Schult.) Gould | 26 images |
| Dichanthium annulatum (Forssk.) Stapf | 50 images |
| Dichelostemma congestum (Sm.) Kunth | 54 images |
| Dichondra argentea Humb. & Bonpl. ex Willd. | 7 images |
| Dichondra carolinensis Michx. | 204 images |
| Dichondra micrantha Urb. | 924 images |
| Dichondra occidentalis House | 10 images |
| Dichondra sericea Sw. | 7 images |
| Dichrostachys cinerea (L.) Wight & Arn. | 373 images |
| Dicliptera resupinata (Vahl) Juss. | 28 images |
| Dicliptera sexangularis (L.) Juss. | 8 images |
| Dicranopteris flexuosa (Schrad.) Underw. | 5 images |
| Dictamnus albus L. | 1665 images |
| Dieffenbachia seguine (Jacq.) Schott | 8433 images |
| Diervilla lonicera Mill. | 524 images |
| Diervilla sessilifolia Buckley | 81 images |
| Digera muricata (L.) Mart. | 111 images |
| Digitalis grandiflora Mill. | 2235 images |
| Digitalis lanata Ehrh. | 171 images |
| Digitalis lutea L. | 2784 images |
| Digitalis purpurea L. | 19936 images |
| Digitaria bicornis (Lam.) Roem. & Schult. | 4 images |
| Digitaria ciliaris (Retz.) Koeler | 196 images |
| Digitaria eriantha Steud. | 24 images |
| Digitaria filiformis (L.) Koeler | 5 images |
| Digitaria horizontalis Willd. | 5 images |
| Digitaria insularis (L.) Mez ex Ekman | 24 images |
| Digitaria milanjiana (Rendle) Stapf | 3 images |
| Digitaria sanguinalis (L.) Scop. | 2125 images |
| Digitaria velutina (Forssk.) P. Beauv. | 58 images |
| Digitaria violascens Link | 12 images |
| Dimocarpus longan Lour. | 406 images |
| Dimorphocarpa candicans (Raf.) Rollins | 4 images |
| Dimorphocarpa wislizeni (Engelm.) Rollins | 2 images |
| Dimorphotheca sinuata DC. | 1468 images |
| Dinebra retroflexa (Vahl) Panzer | 26 images |
| Diodia dasycephala Cham. & Schltdl. | 8 images |
| Diodia teres Walter | 53 images |
| Diodia virginiana L. | 362 images |
| Dioscorea alata L. | 258 images |
| Dioscorea bulbifera L. | 465 images |
| Dioscorea floridana Bartlett | 1 images |
| Dioscorea oppositifolia L. | 50 images |
| Dioscorea sansibarensis Pax | 25 images |
| Dioscorea villosa L. | 265 images |
| Diospyros digyna Jacq. | 106 images |
| Diospyros maritima Blume | 7 images |
| Diospyros texana Scheele | 116 images |
| Diospyros virginiana L. | 2149 images |
| Diphylleia cymosa Michx. | 38 images |
| Diplacus aurantiacus (W. Curtis) Jeps. | 2 images |
| Diplacus clevelandii (Brandegee) Greene | 1 images |
| Diplacus puniceus Nutt. | 51 images |
| Diplazium esculentum (Retz.) Sw. | 52 images |
| Diplazium lonchophyllum Kunze | 1 images |
| Diplotaxis erucoides (L.) DC. | 7026 images |
| Diplotaxis muralis (L.) DC. | 789 images |
| Diplotaxis tenuifolia (L.) DC. | 5492 images |
| Dipogon lignosus (L.) Verdc. | 48 images |
| Dipsacus fullonum L. | 12844 images |
| Dipsacus laciniatus L. | 823 images |
| Dipsacus sativus (L.) Honck. | 2157 images |
| Dirca palustris L. | 70 images |
| Distichlis spicata (L.) Greene | 89 images |
| Dithyrea californica Harv. | 64 images |
| Dittrichia graveolens (L.) Greuter | 926 images |
| Dittrichia viscosa (L.) Greuter | 7961 images |
| Dodecatheon jeffreyi Van Houtte | 2 images |
| Dodecatheon meadia L. | 142 images |
| Dodecatheon pulchellum (Raf.) Merr. | 2 images |
| Dodonaea viscosa (L.) Jacq. | 1075 images |
| Doellingeria umbellata (Mill.) Nees | 433 images |
| Doronicum pardalianches L. | 1903 images |
| Doronicum plantagineum L. | 925 images |
| Dorstenia contrajerva L. | 83 images |
| Downingia bella Hoover | 1 images |
| Downingia concolor Greene | 16 images |
| Downingia elegans (Douglas ex Lindl.) Torr. | 1 images |
| Downingia insignis Greene | 15 images |
| Downingia montana Greene | 5 images |
| Downingia ornatissima Greene | 15 images |
| Downingia pulchella (Lindl.) Torr. | 8 images |
| Downingia yina Applegate | 8 images |
| Draba crassifolia Graham | 1 images |
| Draba fladnizensis Wulfen | 11 images |
| Draba glabella Pursh | 7 images |
| Draba helleriana Greene | 8 images |
| Draba incana L. | 26 images |
| Draba nemorosa L. | 75 images |
| Draba oligosperma Hook. | 6 images |
| Draba spectabilis Greene | 1 images |
| Draba verna L. | 2412 images |
| Dracaena fragrans (L.) Ker Gawl. | 8315 images |
| Dracaena reflexa Lam. | 9923 images |
| Dracocephalum moldavica L. | 249 images |
| Dracocephalum parviflorum Nutt. | 28 images |
| Dracocephalum thymiflorum L. | 11 images |
| Dracunculus vulgaris Schott | 1366 images |
| Drosera aliciae Raym.-Hamet | 82 images |
| Drosera anglica Huds. | 165 images |
| Drosera brevifolia Pursh | 68 images |
| Drosera capensis L. | 506 images |
| Drosera capillaris Poir. | 137 images |
| Drosera filiformis Raf. | 67 images |
| Drosera intermedia Hayne | 406 images |
| Drosera linearis Goldie | 14 images |
| Drosera rotundifolia L. | 1418 images |
| Dryas drummondii Richardson ex Hook. | 34 images |
| Dryas integrifolia Vahl | 2 images |
| Dryas octopetala L. | 2493 images |
| Drymaria cordata (L.) Willd. ex Schult. | 311 images |
| Drynaria quercifolia (L.) J. Sm. | 47 images |
| Dryopteris arguta (Kaulf.) Watt | 3 images |
| Dryopteris carthusiana (Vill.) H.P. Fuchs | 178 images |
| Dryopteris celsa (Wm. Palmer) Knowlt., Palmer & Pollard ex Small | 3 images |
| Dryopteris cristata (L.) A. Gray | 100 images |
| Dryopteris filix-mas (L.) Schott | 5878 images |
| Dryopteris fragrans (L.) Schott | 30 images |
| Dryopteris intermedia (Muhl. ex Willd.) A. Gray | 298 images |
| Dryopteris ludoviciana (Kunze) Small | 8 images |
| Dryopteris marginalis (L.) A. Gray | 226 images |
| Duchesnea indica (Andrews) Teschem. | 528 images |
| Dudleya abramsii Rose | 19 images |
| Dudleya caespitosa (Haw.) Britton & Rose | 9 images |
| Dudleya candelabrum Rose | 11 images |
| Dudleya cymosa (Lem.) Britton & Rose | 6 images |
| Dudleya densiflora (Rose) Moran | 37 images |
| Dudleya edulis (Nutt.) Moran | 255 images |
| Dudleya farinosa (Lindl.) Britton & Rose | 6 images |
| Dudleya greenei Rose | 1758 images |
| Dudleya lanceolata (Nutt.) Britton & Rose | 6 images |
| Dudleya nesiotica (Moran) Moran | 11 images |
| Dudleya pulverulenta (Nutt.) Britton & Rose | 113 images |
| Dudleya traskiae (Rose) Moran | 4 images |
| Dudleya virens (Rose) Moran | 15 images |
| Dulichium arundinaceum (L.) Britton | 35 images |
| Duranta erecta L. | 7428 images |
| Dyckia brevifolia Baker | 122 images |
| Dyschoriste humistrata (Michx.) Kuntze | 1 images |
| Dyschoriste oblongifolia (Michx.) Kuntze | 13 images |
| Dyschoriste schiedeana (Nees) Kuntze | 38 images |
| Dysphania ambrosioides (L.) Mosyakin & Clemants | 1032 images |
| Dysphania anthelmintica (L.) Mosyakin & Clemants | 1 images |
| Dysphania botrys (L.) Mosyakin & Clemants | 96 images |
| Dysphania chilensis (Schrad.) Mosyakin & Clemants | 3 images |
| Dysphania multifida (L.) Mosyakin & Clemants | 51 images |
| Dyssodia papposa (Vent.) Hitchc. | 23 images |
| Eastwoodia elegans Brandegee | 11 images |
| Ecballium elaterium (L.) A. Rich. | 4 images |
| Echeandia texensis Cruden | 2 images |
| Echinacea angustifolia DC. | 1365 images |
| Echinacea pallida (Nutt.) Nutt. | 644 images |
| Echinacea purpurea (L.) Moench | 6089 images |
| Echinacea sanguinea Nutt. | 10 images |
| Echinacea tennesseensis (Beadle) Small | 85 images |
| Echinocactus horizonthalonius Lem. | 102 images |
| Echinocactus texensis Hopffer | 215 images |
| Echinocereus coccineus Engelm. | 1068 images |
| Echinocereus dasyacanthus Engelm. | 94 images |
| Echinocereus engelmannii (Parry ex Engelm.) Lem. | 459 images |
| Echinocereus enneacanthus Engelm. | 81 images |
| Echinocereus ledingii Peebles | 5 images |
| Echinocereus pectinatus (Scheidw.) Engelm. | 965 images |
| Echinocereus pentalophus (DC.) Lem. | 295 images |
| Echinocereus polyacanthus Engelm. | 32 images |
| Echinocereus poselgeri Lem. | 130 images |
| Echinocereus triglochidiatus Engelm. | 321 images |
| Echinocereus viridiflorus Engelm. | 94 images |
| Echinochloa colona (L.) Link | 33 images |
| Echinochloa crus-galli (L.) P. Beauv. | 2 images |
| Echinochloa frumentacea Link | 13 images |
| Echinochloa oryzoides (Ard.) Fritsch | 16 images |
| Echinochloa polystachya (Kunth) Hitchc. | 2 images |
| Echinocystis lobata (Michx.) Torr. & A. Gray | 1 images |
| Echinodorus berteroi (Spreng.) Fassett | 12 images |
| Echinodorus cordifolius (L.) Griseb. | 83 images |
| Echinops exaltatus Schrad. | 220 images |
| Echinops ritro L. | 4660 images |
| Echinops sphaerocephalus L. | 2819 images |
| Echites umbellatus Jacq. | 11 images |
| Echium creticum L. | 862 images |
| Echium italicum L. | 1873 images |
| Echium plantagineum L. | 6922 images |
| Echium vulgare L. | 30619 images |
| Eclipta prostrata (L.) L. | 1239 images |
| Edgeworthia chrysantha Lindl. | 539 images |
| Egeria densa Planch. | 98 images |
| Egletes viscosa (L.) Less. | 26 images |
| Ehrharta calycina Sm. | 4 images |
| Ehrharta erecta Lam. | 41 images |
| Ehrharta longiflora Sm. | 1 images |
| Eichhornia azurea (Sw.) Kunth | 21 images |
| Eichhornia crassipes (Mart.) Solms | 1413 images |
| Eichhornia paniculata (Spreng.) Solms | 7 images |
| Elaeagnus angustifolia L. | 4532 images |
| Elaeagnus commutata Bernh. ex Rydb. | 189 images |
| Elaeagnus multiflora Thunb. | 182 images |
| Elaeagnus pungens Thunb. | 4822 images |
| Elaeagnus umbellata Thunb. | 2346 images |
| Elaeis guineensis Jacq. | 461 images |
| Elatine rubella Rydb. | 6 images |
| Elatine triandra Schkuhr | 38 images |
| Eleocharis acicularis (L.) Roem. & Schult. | 49 images |
| Eleocharis acutangula (Roxb.) Schult. | 10 images |
| Eleocharis albida Torr. | 2 images |
| Eleocharis baldwinii (Torr.) Chapm. | 3 images |
| Eleocharis cellulosa Torr. | 1 images |
| Eleocharis compressa Sull. | 16 images |
| Eleocharis elegans (Kunth) Roem. & Schult. | 97 images |
| Eleocharis elongata Chapm. | 1 images |
| Eleocharis erythropoda Steud. | 5 images |
| Eleocharis flavescens (Poir.) Urb. | 8 images |
| Eleocharis interstincta (Vahl) Roem. & Schult. | 8 images |
| Eleocharis macrostachya Britton | 10 images |
| Eleocharis montana (Kunth) Roem. & Schult. | 1 images |
| Eleocharis obtusa (Willd.) Schult. | 31 images |
| Eleocharis ovata (Roth) Roem. & Schult. | 42 images |
| Eleocharis palustris (L.) Roem. & Schult. | 578 images |
| Eleocharis parvula (Roem. & Schult.) Link ex Bluff, Nees & Schauer | 40 images |
| Eleocharis retroflexa (Poir.) Urb. | 12 images |
| Eleocharis tortilis (Link) Schult. | 1 images |
| Eleocharis uniglumis (Link) Schult. | 26 images |
| Elephantopus carolinianus Raeusch. | 32 images |
| Elephantopus elatus Bertol. | 244 images |
| Elephantopus tomentosus L. | 22 images |
| Eleusine coracana (L.) Gaertn. | 43 images |
| Eleusine indica (L.) Gaertn. | 813 images |
| Eleusine tristachya (Lam.) Lam. | 133 images |
| Ellisia nyctelea (L.) L. | 38 images |
| Elodea canadensis Michx. | 215 images |
| Elsholtzia ciliata (Thunb.) Hyl. | 48 images |
| Elymus canadensis L. | 116 images |
| Elymus caninus (L.) L. | 167 images |
| Elymus elymoides (Raf.) Swezey | 19 images |
| Elymus glaucus Buckley | 13 images |
| Elymus hystrix L. | 35 images |
| Elymus repens (L.) Gould | 534 images |
| Elymus riparius Wiegand | 4 images |
| Elymus villosus Muhl. ex Willd. | 6 images |
| Elymus virginicus L. | 40 images |
| Elytraria imbricata (Vahl) Pers. | 38 images |
| Emex australis Steinh. | 3 images |
| Emex spinosa (L.) Campd. | 333 images |
| Emilia fosbergii Nicolson | 629 images |
| Emilia sonchifolia (L.) DC. | 362 images |
| Emmenanthe penduliflora Benth. | 101 images |
| Empetrum nigrum L. | 1097 images |
| Encelia californica Nutt. | 312 images |
| Encelia farinosa A. Gray ex Torr. | 1 images |
| Encyclia rufa (Lindl.) Britton & Millsp. | 2 images |
| Encyclia tampensis (Lindl.) Small | 94 images |
| Enemion biternatum Raf. | 1 images |
| Enneapogon desvauxii Desv. ex P. Beauv. | 20 images |
| Enterolobium contortisiliquum (Vell.) Morong | 138 images |
| Enydra fluctuans Lour. | 4 images |
| Ephedra altissima Desf. | 81 images |
| Ephedra distachya L. | 764 images |
| Ephedra viridis Coville | 104 images |
| Epidendrum acunae Dressler | 16 images |
| Epidendrum nocturnum Jacq. | 117 images |
| Epidendrum radicans Pav. ex Lindl. | 665 images |
| Epidendrum rigidum Jacq. | 46 images |
| Epigaea repens L. | 153 images |
| Epilobium anagallidifolium Lam. | 182 images |
| Epilobium canum (Greene) P.H. Raven | 2 images |
| Epilobium ciliatum Raf. | 3971 images |
| Epilobium clavatum Trel. | 2 images |
| Epilobium coloratum Biehler | 50 images |
| Epilobium glaberrimum Barbey | 13 images |
| Epilobium hirsutum L. | 12153 images |
| Epilobium hornemannii Rchb. | 23 images |
| Epilobium howellii Hoch | 10 images |
| Epilobium lactiflorum Hausskn. | 18 images |
| Epilobium leptophyllum Raf. | 8 images |
| Epilobium luteum Pursh | 26 images |
| Epilobium minutum Lindl. ex Lehm. | 13 images |
| Epilobium mirabile Trel. ex Piper | 3 images |
| Epilobium nevadense Munz | 3 images |
| Epilobium nivium Brandegee | 7 images |
| Epilobium obscurum Schreb. | 64 images |
| Epilobium oreganum Greene | 16 images |
| Epilobium oregonense Hausskn. | 4 images |
| Epilobium palustre L. | 355 images |
| Epilobium parviflorum Schreb. | 3298 images |
| Epilobium rigidum Hausskn. | 4 images |
| Epilobium suffruticosum Nutt. | 3 images |
| Epipactis helleborine (L.) Crantz | 5777 images |
| Epiphyllum oxypetalum (DC.) Haw. | 2715 images |
| Epipremnum pinnatum (L.) Engl. | 628 images |
| Equisetum arvense L. | 5686 images |
| Equisetum fluviatile L. | 725 images |
| Equisetum hyemale L. | 2455 images |
| Equisetum palustre L. | 791 images |
| Equisetum pratense Ehrh. | 306 images |
| Equisetum ramosissimum Desf. | 692 images |
| Equisetum scirpoides Michx. | 73 images |
| Equisetum sylvaticum L. | 2057 images |
| Equisetum telmateia Ehrh. | 5380 images |
| Eragrostis airoides Nees | 5 images |
| Eragrostis barrelieri Daveau | 59 images |
| Eragrostis cumingii Steud. | 7 images |
| Eragrostis curvula (Schrad.) Nees | 59 images |
| Eragrostis cylindriflora Hochst. | 10 images |
| Eragrostis hypnoides (Lam.) Britton, Sterns & Poggenb. | 5 images |
| Eragrostis japonica (Thunb.) Trin. | 5 images |
| Eragrostis lehmanniana Nees | 4 images |
| Eragrostis mexicana (Hornem.) Link | 25 images |
| Eragrostis minor Host | 259 images |
| Eragrostis plana Nees | 5 images |
| Eragrostis prolifera (Sw.) Steud. | 9 images |
| Eragrostis spectabilis (Pursh) Steud. | 158 images |
| Eragrostis superba Peyr. | 238 images |
| Eragrostis tef (Zuccagni) Trotter | 9 images |
| Eragrostis unioloides (Retz.) Nees ex Steud. | 92 images |
| Eragrostis variabilis (Gaudich.) Steud. | 12 images |
| Eranthemum pulchellum Andrews | 242 images |
| Eranthis hyemalis (L.) Salisb. | 4110 images |
| Erechtites hieraciifolius (L.) Raf. ex DC. | 1440 images |
| Eremalche parryi (Greene) Greene | 43 images |
| Eremochloa ophiuroides (Munro) Hack. | 2 images |
| Eremopyrum bonaepartis (Spreng.) Nevski | 2 images |
| Eremopyrum triticeum (Gaertn.) Nevski | 8 images |
| Erica cinerea L. | 4813 images |
| Erica tetralix L. | 1064 images |
| Erica vagans L. | 2158 images |
| Erigenia bulbosa (Michx.) Nutt. | 71 images |
| Erigeron acris L. | 848 images |
| Erigeron algidus Jeps. | 12 images |
| Erigeron aliceae Howell | 13 images |
| Erigeron annuus (L.) Pers. | 5200 images |
| Erigeron aureus Greene | 11 images |
| Erigeron barbellulatus Greene | 1 images |
| Erigeron biolettii Greene | 7 images |
| Erigeron blochmaniae Greene | 3 images |
| Erigeron caespitosus Nutt. | 3 images |
| Erigeron clokeyi Cronquist | 14 images |
| Erigeron compositus Pursh | 33 images |
| Erigeron decumbens Nutt. | 2 images |
| Erigeron divergens Torr. & A. Gray | 2 images |
| Erigeron elegantulus Greene | 25 images |
| Erigeron foliosus Nutt. | 173 images |
| Erigeron formosissimus Greene | 5 images |
| Erigeron glabellus Nutt. | 104 images |
| Erigeron glaucus Ker Gawl. | 1041 images |
| Erigeron grandiflorus Hook. | 1 images |
| Erigeron humilis Graham | 6 images |
| Erigeron karvinskianus DC. | 4318 images |
| Erigeron lassenianus Greene | 4 images |
| Erigeron linearis (Hook.) Piper | 34 images |
| Erigeron lonchophyllus Hook. | 13 images |
| Erigeron nanus Nutt. | 1 images |
| Erigeron petrophilus Greene | 19 images |
| Erigeron philadelphicus L. | 2767 images |
| Erigeron pubescens Kunth | 13 images |
| Erigeron pulchellus Michx. | 184 images |
| Erigeron pumilus Nutt. | 59 images |
| Erigeron quercifolius Lam. | 69 images |
| Erigeron rhizomatus Cronquist | 3 images |
| Erigeron speciosus (Lindl.) DC. | 838 images |
| Erigeron strigosus Muhl. ex Willd. | 3851 images |
| Erigeron vagus Payson | 19 images |
| Erigeron vetensis Rydb. | 4 images |
| Eriobotrya japonica (Thunb.) Lindl. | 9869 images |
| Eriocaulon aquaticum (Hill) Druce | 23 images |
| Eriocaulon decangulare L. | 5 images |
| Eriochloa polystachya Kunth | 8 images |
| Eriochloa villosa (Thunb.) Kunth | 6 images |
| Eriodictyon angustifolium Nutt. | 11 images |
| Eriodictyon crassifolium Benth. | 156 images |
| Eriodictyon tomentosum Benth. | 28 images |
| Eriodictyon traskiae Eastw. | 4 images |
| Eriogonum alatum Torr. | 9 images |
| Eriogonum alpinum Engelm. | 14 images |
| Eriogonum anemophilum Greene | 1 images |
| Eriogonum angulosum Benth. | 22 images |
| Eriogonum annuum Nutt. | 14 images |
| Eriogonum arborescens Greene | 33 images |
| Eriogonum brachyanthum Coville | 2 images |
| Eriogonum brevicaule Nutt. | 2 images |
| Eriogonum caespitosum Nutt. | 37 images |
| Eriogonum cernuum Nutt. | 12 images |
| Eriogonum cinereum Benth. | 31 images |
| Eriogonum compositum Douglas ex Benth. | 28 images |
| Eriogonum corymbosum Benth. | 4 images |
| Eriogonum covilleanum Eastw. | 5 images |
| Eriogonum crocatum Davidson | 24 images |
| Eriogonum crosbyae Reveal | 6 images |
| Eriogonum davidsonii Greene | 2 images |
| Eriogonum deflexum Torr. | 16 images |
| Eriogonum diclinum Reveal | 6 images |
| Eriogonum douglasii Benth. | 25 images |
| Eriogonum elatum Douglas ex Benth. | 25 images |
| Eriogonum elongatum Benth. | 30 images |
| Eriogonum fasciculatum Benth. | 838 images |
| Eriogonum gossypinum Curran | 6 images |
| Eriogonum gracile Benth. | 10 images |
| Eriogonum grande Greene | 41 images |
| Eriogonum gypsophilum Wooton & Standl. | 2 images |
| Eriogonum heracleoides Nutt. | 101 images |
| Eriogonum jamesii Benth. | 12 images |
| Eriogonum lachnogynum Torr. ex Benth. | 6 images |
| Eriogonum latens Jeps. | 1 images |
| Eriogonum latifolium Sm. | 179 images |
| Eriogonum libertini Reveal | 5 images |
| Eriogonum longifolium Nutt. | 8 images |
| Eriogonum luteolum Greene | 21 images |
| Eriogonum multiflorum Benth. | 16 images |
| Eriogonum nidularium Coville | 24 images |
| Eriogonum nortonii Greene | 6 images |
| Eriogonum nudum Douglas ex Benth. | 73 images |
| Eriogonum ovalifolium Nutt. | 149 images |
| Eriogonum parvifolium Sm. | 74 images |
| Eriogonum plumatella Durand & Hilg. | 23 images |
| Eriogonum prattenianum Durand | 13 images |
| Eriogonum prociduum Reveal | 5 images |
| Eriogonum pyrolifolium Hook. | 46 images |
| Eriogonum racemosum Nutt. | 12 images |
| Eriogonum robustum Greene | 21 images |
| Eriogonum roseum Durand & Hilg. | 15 images |
| Eriogonum rotundifolium Benth. | 1 images |
| Eriogonum rubricaule Tidestr. | 1 images |
| Eriogonum siskiyouense Small | 9 images |
| Eriogonum sphaerocephalum Douglas ex Benth. | 21 images |
| Eriogonum strictum Benth. | 41 images |
| Eriogonum tenellum Torr. | 3 images |
| Eriogonum thomasii Torr. | 21 images |
| Eriogonum thurberi Torr. | 1 images |
| Eriogonum thymoides Benth. | 20 images |
| Eriogonum tiehmii Reveal | 8 images |
| Eriogonum tomentosum Michx. | 6 images |
| Eriogonum trichopes Torr. | 14 images |
| Eriogonum tripodum Greene | 3 images |
| Eriogonum umbellatum Torr. | 399 images |
| Eriogonum vimineum Douglas ex Benth. | 22 images |
| Eriogonum wrightii Torr. ex Benth. | 97 images |
| Erioneuron pilosum (Buckley) Nash | 10 images |
| Eriophorum angustifolium Honck. | 2142 images |
| Eriophorum scheuchzeri Hoppe | 875 images |
| Eriophorum vaginatum L. | 765 images |
| Eriophorum virginicum L. | 16 images |
| Eriophorum viridicarinatum (Engelm.) Fernald | 2 images |
| Eriophyllum congdonii Brandegee | 7 images |
| Eriophyllum jepsonii Greene | 1 images |
| Eriophyllum latilobum Rydb. | 2 images |
| Eriophyllum stoechadifolium Lag. | 221 images |
| Erithalis fruticosa L. | 57 images |
| Ernodea littoralis Sw. | 52 images |
| Erodium botrys (Cav.) Bertol. | 511 images |
| Erodium brachycarpum (Godr.) Thell. | 14 images |
| Erodium cicutarium (L.) L'Hér. ex Aiton | 6 images |
| Erodium laciniatum (Cav.) Willd. | 214 images |
| Eruca vesicaria (L.) Cav. | 2517 images |
| Eryngium aquaticum L. | 16 images |
| Eryngium aristulatum Jeps. | 16 images |
| Eryngium campestre L. | 5057 images |
| Eryngium foetidum L. | 544 images |
| Eryngium heterophyllum Engelm. | 29 images |
| Eryngium hookeri Walp. | 12 images |
| Eryngium integrifolium Walter | 5 images |
| Eryngium leavenworthii Torr. & A. Gray | 1 images |
| Eryngium maritimum L. | 3745 images |
| Eryngium planum L. | 1869 images |
| Eryngium prostratum Nutt. ex DC. | 12 images |
| Eryngium racemosum Jeps. | 1 images |
| Eryngium yuccifolium Michx. | 414 images |
| Erysimum asperum (Nutt.) DC. | 89 images |
| Erysimum cheiranthoides L. | 1095 images |
| Erysimum cheiri (L.) Crantz | 29 images |
| Erysimum diffusum Ehrh. | 15 images |
| Erysimum odoratum Ehrh. | 1513 images |
| Erysimum repandum L. | 51 images |
| Erysimum teretifolium Eastw. | 8 images |
| Erythrina crista-galli L. | 2911 images |
| Erythrina flabelliformis Kearney | 89 images |
| Erythrina herbacea L. | 295 images |
| Erythronium albidum Nutt. | 190 images |
| Erythronium americanum Ker Gawl. | 1302 images |
| Erythronium californicum Purdy | 30 images |
| Erythronium grandiflorum Pursh | 141 images |
| Erythronium helenae Applegate | 10 images |
| Erythronium klamathense Applegate | 7 images |
| Erythronium oregonum Applegate | 124 images |
| Erythronium revolutum Sm. | 113 images |
| Erythronium tuolumnense Applegate | 225 images |
| Escallonia rubra (Ruiz & Pav.) Pers. | 3536 images |
| Eschscholzia caespitosa Benth. | 166 images |
| Eschscholzia californica Cham. | 13190 images |
| Eschscholzia glyptosperma Greene | 40 images |
| Eschscholzia hypecoides Benth. | 6 images |
| Eschscholzia lemmonii Greene | 12 images |
| Eschscholzia lobbii Greene | 42 images |
| Eschscholzia parishii Greene | 6 images |
| Escobaria dasyacantha (Engelm.) Britton & Rose | 1 images |
| Escobaria emskoetteriana (Quehl) Borg | 102 images |
| Escobaria orcuttii Boed. | 1 images |
| Escobaria sneedii Britton & Rose | 21 images |
| Escobaria tuberculosa (Engelm.) Britton & Rose | 7 images |
| Eucalyptus camaldulensis Dehnh. | 2349 images |
| Eucalyptus globulus Labill. | 4413 images |
| Eucalyptus polyanthemos Schauer | 2 images |
| Eucalyptus pulverulenta Sims | 468 images |
| Eucalyptus robusta Sm. | 321 images |
| Eucalyptus tereticornis Sm. | 61 images |
| Eucalyptus torquata Luehm. | 35 images |
| Eucalyptus viminalis Labill. | 56 images |
| Eucephalus tomentellus (Greene) Greene | 1 images |
| Eucnide bartonioides Zucc. | 6 images |
| Eucrypta chrysanthemifolia (Benth.) Greene | 100 images |
| Eugenia axillaris (Sw.) Willd. | 26 images |
| Eugenia confusa DC. | 6 images |
| Eugenia foetida Pers. | 8 images |
| Eugenia uniflora L. | 2544 images |
| Eulophia alta (L.) Fawc. & Rendle | 28 images |
| Euonymus alatus (Thunb.) Siebold | 2780 images |
| Euonymus americanus L. | 393 images |
| Euonymus atropurpureus Jacq. | 108 images |
| Euonymus europaeus L. | 18485 images |
| Euonymus fortunei (Turcz.) Hand.-Maz. | 8 images |
| Euonymus hamiltonianus Wall. | 78 images |
| Euonymus japonicus Thunb. | 6758 images |
| Euonymus occidentalis Nutt. ex Torr. | 27 images |
| Euonymus phellomanus Loes. | 16 images |
| Eupatorium album L. | 6 images |
| Eupatorium altissimum L. | 110 images |
| Eupatorium cannabinum L. | 19413 images |
| Eupatorium capillifolium (Lam.) Small | 5 images |
| Eupatorium hyssopifolium L. | 41 images |
| Eupatorium mohrii Greene | 3 images |
| Eupatorium perfoliatum L. | 856 images |
| Eupatorium pilosum Walter | 7 images |
| Eupatorium resinosum Torr. ex DC. | 5 images |
| Eupatorium rotundifolium L. | 34 images |
| Eupatorium serotinum Michx. | 872 images |
| Eupatorium sessilifolium L. | 6 images |
| Euphorbia antisyphilitica Zucc. | 23 images |
| Euphorbia characias L. | 11816 images |
| Euphorbia corollata L. | 194 images |
| Euphorbia cyathophora Murray | 3 images |
| Euphorbia cyparissias L. | 14711 images |
| Euphorbia davidii Subils | 36 images |
| Euphorbia dendroides L. | 1777 images |
| Euphorbia dentata Michx. | 16 images |
| Euphorbia epithymoides L. | 671 images |
| Euphorbia esula L. | 1591 images |
| Euphorbia exigua L. | 540 images |
| Euphorbia falcata L. | 149 images |
| Euphorbia graminea Jacq. | 181 images |
| Euphorbia helioscopia L. | 8455 images |
| Euphorbia heterophylla L. | 949 images |
| Euphorbia lactea Haw. | 1773 images |
| Euphorbia lathyris L. | 8455 images |
| Euphorbia lucida Waldst. & Kit. | 59 images |
| Euphorbia marginata Pursh | 1347 images |
| Euphorbia milii Des Moul. | 9947 images |
| Euphorbia misera Benth. | 5 images |
| Euphorbia myrsinites L. | 2055 images |
| Euphorbia oblongata Griseb. | 1 images |
| Euphorbia paralias L. | 2975 images |
| Euphorbia peplus L. | 6354 images |
| Euphorbia platyphyllos L. | 446 images |
| Euphorbia pubentissima Michx. | 7 images |
| Euphorbia pulcherrima Willd. ex Klotzsch | 7326 images |
| Euphorbia segetalis L. | 2464 images |
| Euphorbia serrata L. | 3173 images |
| Euphorbia stricta L. | 390 images |
| Euphorbia terracina L. | 607 images |
| Euphorbia tirucalli L. | 2099 images |
| Euphrasia micrantha Rchb. | 41 images |
| Euphrasia nemorosa (Pers.) Wallr. | 314 images |
| Eurybia divaricata (L.) G.L. Nesom | 6 images |
| Eurybia macrophylla (L.) Cass. | 1394 images |
| Eurybia schreberi (Nees) Nees | 23 images |
| Eustachys paspaloides (Vahl) Lanza & Mattei | 59 images |
| Eustachys petraea (Sw.) Desv. | 2 images |
| Eustachys retusa (Lag.) Kunth | 4 images |
| Eustoma exaltatum (L.) Salisb. ex G. Don | 1 images |
| Euthamia graminifolia (L.) Nutt. | 651 images |
| Euthamia gymnospermoides Greene | 13 images |
| Euthamia occidentalis Nutt. | 42 images |
| Eutrochium fistulosum (Barratt) E.E. Lamont | 2 images |
| Eutrochium maculatum (L.) E.E. Lamont | 16 images |
| Evolvulus alsinoides (L.) L. | 662 images |
| Evolvulus convolvuloides (Willd. ex Schult.) Stearn | 12 images |
| Evolvulus filipes Mart. | 5 images |
| Evolvulus glomeratus Nees & Mart. | 42 images |
| Evolvulus sericeus Sw. | 68 images |
| Exochorda racemosa (Lindl.) Rehder | 1357 images |
| Exostema caribaeum (Jacq.) Schult. | 40 images |
| Exothea paniculata (Juss.) Radlk. | 2 images |
| Eysenhardtia texana Scheele | 35 images |
| Fagonia laevis Standl. | 44 images |
| Fagonia pachyacantha Rydb. | 20 images |
| Fagopyrum esculentum Moench | 5606 images |
| Fagopyrum tataricum (L.) Gaertn. | 179 images |
| Fagus grandifolia Ehrh. | 2255 images |
| Fagus sylvatica L. | 27272 images |
| Falcaria vulgaris Bernh. | 891 images |
| Fatoua villosa (Thunb.) Nakai | 277 images |
| Ferocactus cylindraceus (Engelm.) Orcutt | 435 images |
| Ferocactus emoryi (Engelm.) Orcutt | 5 images |
| Ferocactus hamatacanthus (Muehlenpf.) Britton & Rose | 158 images |
| Ferocactus wislizeni (Engelm.) Britton & Rose | 48 images |
| Festuca arizonica Vasey | 3 images |
| Festuca californica Vasey | 13 images |
| Festuca filiformis Pourr. | 132 images |
| Festuca heteromalla Pourr. | 6 images |
| Festuca heterophylla Lam. | 122 images |
| Festuca idahoensis Elmer | 3 images |
| Festuca occidentalis Hook. | 7 images |
| Festuca ovina L. | 188 images |
| Festuca rubra L. | 341 images |
| Festuca valesiaca Schleich. ex Gaudin | 20 images |
| Festuca viridula Vasey | 1 images |
| Festuca viviparoidea Krajina ex Pavlick | 6 images |
| Ficus altissima Blume | 342 images |
| Ficus americana Aubl. | 108 images |
| Ficus aurea Nutt. | 180 images |
| Ficus benghalensis L. | 1069 images |
| Ficus benjamina L. | 6581 images |
| Ficus carica L. | 13855 images |
| Ficus citrifolia Mill. | 186 images |
| Ficus elastica Roxb. ex Hornem. | 5983 images |
| Ficus macrophylla Desf. ex Pers. | 1329 images |
| Ficus palmata Forssk. | 85 images |
| Ficus pumila L. | 1904 images |
| Ficus religiosa L. | 971 images |
| Ficus rubiginosa Desf. ex Vent. | 729 images |
| Ficus thonningii Blume | 415 images |
| Filago pyramidata L. | 456 images |
| Filago vulgaris Lam. | 5 images |
| Filipendula rubra (Hill) B.L. Rob. | 4 images |
| Filipendula ulmaria (L.) Maxim. | 11333 images |
| Filipendula vulgaris Moench | 3090 images |
| Fimbristylis autumnalis (L.) Roem. & Schult. | 287 images |
| Fimbristylis dichotoma (L.) Vahl | 57 images |
| Fimbristylis littoralis Gaudich. | 40 images |
| Fimbristylis vahlii (Lam.) Link | 20 images |
| Flaveria bidentis (L.) Kuntze | 28 images |
| Flaveria linearis Lag. | 11 images |
| Floerkea proserpinacoides Willd. | 43 images |
| Florestina tripteris DC. | 3 images |
| Flourensia cernua DC. | 1 images |
| Foeniculum vulgare Mill. | 10544 images |
| Forestiera acuminata (Michx.) Poir. | 15 images |
| Forestiera angustifolia Torr. | 10 images |
| Forestiera ligustrina (Michx.) Poir. | 14 images |
| Forestiera pubescens Nutt. | 95 images |
| Forsythia ovata Nakai | 2 images |
| Forsythia suspensa (Thunb.) Vahl | 4783 images |
| Forsythia viridissima Lindl. | 2833 images |
| Fortunella japonica (Thunb.) Swingle | 935 images |
| Fothergilla gardenii L. | 204 images |
| Fouquieria splendens Engelm. | 402 images |
| Fragaria chiloensis (L.) Mill. | 347 images |
| Fragaria vesca L. | 10993 images |
| Fragaria virginiana Duchesne | 1 images |
| Frangula alnus Mill. | 5498 images |
| Frangula californica (Eschsch.) A. Gray | 1 images |
| Frangula purshiana (DC.) A. Gray | 2 images |
| Frankenia pulverulenta L. | 138 images |
| Frasera caroliniensis Walter | 49 images |
| Frasera parryi Torr. | 8 images |
| Frasera speciosa Douglas ex Griseb. | 52 images |
| Frasera tubulosa Coville | 1 images |
| Fraxinus americana L. | 4561 images |
| Fraxinus caroliniana Mill. | 17 images |
| Fraxinus cuspidata Torr. | 12 images |
| Fraxinus dipetala Hook. & Arn. | 9 images |
| Fraxinus excelsior L. | 22672 images |
| Fraxinus latifolia Benth. | 201 images |
| Fraxinus nigra Marshall | 25 images |
| Fraxinus pennsylvanica Marshall | 721 images |
| Fraxinus profunda (Bush) Bush | 19 images |
| Fraxinus quadrangulata Michx. | 34 images |
| Fraxinus velutina Torr. | 106 images |
| Fremontodendron californicum (Torr.) Coville | 622 images |
| Fremontodendron mexicanum Davidson | 29 images |
| Fritillaria agrestis Greene | 18 images |
| Fritillaria atropurpurea Nutt. | 75 images |
| Fritillaria biflora Lindl. | 30 images |
| Fritillaria brandegeei Eastw. | 5 images |
| Fritillaria camschatcensis (L.) Ker Gawl. | 40 images |
| Fritillaria gentneri Gilkey | 39 images |
| Fritillaria glauca Greene | 4 images |
| Fritillaria liliacea Lindl. | 40 images |
| Fritillaria ojaiensis Davidson | 5 images |
| Fritillaria pinetorum Davidson | 13 images |
| Fritillaria pluriflora Torr. ex Benth. | 13 images |
| Fritillaria pudica (Pursh) Spreng. | 51 images |
| Fritillaria purdyi Eastw. | 16 images |
| Fritillaria recurva Benth. | 50 images |
| Fritillaria striata Eastw. | 10 images |
| Fritillaria viridea Kellogg | 1 images |
| Froelichia floridana (Nutt.) Moq. | 52 images |
| Froelichia gracilis (Hook.) Moq. | 33 images |
| Fuchsia boliviana Carrière | 647 images |
| Fuchsia magellanica Lam. | 9969 images |
| Fuchsia paniculata Lindl. | 184 images |
| Fuirena pumila (Torr.) Spreng. | 1 images |
| Fuirena simplex Vahl | 8 images |
| Fuirena squarrosa Michx. | 1 images |
| Fumaria capreolata L. | 3792 images |
| Fumaria occidentalis Pugsley | 11 images |
| Fumaria officinalis L. | 7305 images |
| Fumaria parviflora Lam. | 480 images |
| Fumaria reuteri Boiss. | 7 images |
| Fumaria vaillantii Loisel. | 217 images |
| Funastrum clausum (Jacq.) Schltr. | 50 images |
| Funastrum crispum (Benth.) Schltr. | 3 images |
| Funastrum cynanchoides (Decne.) Schltr. | 35 images |
| Furcraea foetida (L.) Haw. | 760 images |
| Gaillardia aristata Pursh | 2472 images |
| Gaillardia pinnatifida Torr. | 53 images |
| Gaillardia pulchella Foug. | 3147 images |
| Galactia elliottii Nutt. | 18 images |
| Galactia erecta (Walter) Vail | 1 images |
| Galactia marginalis Benth. | 2 images |
| Galactia striata (Jacq.) Urb. | 29 images |
| Galactia volubilis (L.) Britton | 4 images |
| Galanthus nivalis L. | 4972 images |
| Galax urceolata (Poir.) Brummitt | 102 images |
| Galearis spectabilis (L.) Raf. | 155 images |
| Galega officinalis L. | 2310 images |
| Galenia pubescens (Eckl. & Zeyh.) Druce | 17 images |
| Galeopsis angustifolia Ehrh. ex Hoffm. | 780 images |
| Galeopsis bifida Boenn. | 482 images |
| Galeopsis ladanum L. | 646 images |
| Galeopsis tetrahit L. | 8566 images |
| Galinsoga parviflora Cav. | 3188 images |
| Galium album Mill. | 3589 images |
| Galium aparine L. | 12207 images |
| Galium aristatum L. | 167 images |
| Galium asprellum Michx. | 15 images |
| Galium boreale L. | 916 images |
| Galium circaezans Michx. | 73 images |
| Galium clementis Eastw. | 2 images |
| Galium divaricatum Pourr. ex Lam. | 24 images |
| Galium glaucum L. | 196 images |
| Galium labradoricum (Wiegand) Wiegand | 1 images |
| Galium mexicanum Kunth | 3 images |
| Galium mollugo L. | 9208 images |
| Galium murale (L.) All. | 211 images |
| Galium obtusum Bigelow | 7 images |
| Galium odoratum (L.) Scop. | 6684 images |
| Galium oreganum Britton | 4 images |
| Galium palustre L. | 1521 images |
| Galium parisiense L. | 147 images |
| Galium pilosum Aiton | 7 images |
| Galium porrigens Dempster | 48 images |
| Galium rubioides L. | 85 images |
| Galium saxatile L. | 1292 images |
| Galium serpenticum Dempster | 8 images |
| Galium stellatum Kellogg | 11 images |
| Galium sylvaticum L. | 1244 images |
| Galium tricornutum Dandy | 265 images |
| Galium trifidum L. | 36 images |
| Galium triflorum Michx. | 184 images |
| Galium verrucosum Huds. | 941 images |
| Galium verum L. | 9709 images |
| Galium virgatum Nutt. | 10 images |
| Gambelia speciosa Nutt. | 52 images |
| Gamochaeta coarctata (Willd.) Kerguélen | 6 images |
| Gamochaeta pensylvanica (Willd.) Cabrera | 22 images |
| Gamochaeta purpurea (L.) Cabrera | 44 images |
| Garrya congdonii Eastw. | 8 images |
| Garrya elliptica Douglas ex Lindl. | 604 images |
| Garrya fremontii Torr. | 36 images |
| Garrya ovata Benth. | 25 images |
| Garrya veatchii Kellogg | 15 images |
| Garrya wrightii Torr. | 3 images |
| Gaultheria hispidula (L.) Muhl. ex Bigelow | 62 images |
| Gaultheria humifusa (Graham) Rydb. | 25 images |
| Gaultheria procumbens L. | 1199 images |
| Gaultheria shallon Pursh | 854 images |
| Gaura angustifolia Michx. | 4 images |
| Gayophytum eriospermum Coville | 12 images |
| Gayophytum humile Juss. | 10 images |
| Gazania linearis (Thunb.) Druce | 1477 images |
| Gelsemium rankinii Small | 5 images |
| Gelsemium sempervirens (L.) W.T. Aiton | 1 images |
| Genista canariensis L. | 124 images |
| Genista linifolia L. | 202 images |
| Genista tinctoria L. | 2153 images |
| Gentiana affinis Griseb. | 34 images |
| Gentiana algida Pall. | 21 images |
| Gentiana andrewsii Griseb. | 140 images |
| Gentiana autumnalis L. | 4 images |
| Gentiana calycosa Griseb. | 136 images |
| Gentiana clausa Raf. | 32 images |
| Gentiana cruciata L. | 1413 images |
| Gentiana douglasiana Bong. | 14 images |
| Gentiana fremontii Torr. | 4 images |
| Gentiana glauca Pall. | 5 images |
| Gentiana linearis Froel. | 71 images |
| Gentiana parryi Engelm. | 22 images |
| Gentiana prostrata Haenke | 7 images |
| Gentiana saponaria L. | 7 images |
| Gentiana sceptrum Griseb. | 3 images |
| Gentiana septemfida Pall. | 87 images |
| Gentiana villosa L. | 16 images |
| Gentianella amarella (L.) Börner | 143 images |
| Gentianella quinquefolia (L.) Small | 19 images |
| Gentianopsis crinita (Froel.) Ma | 58 images |
| Gentianopsis thermalis (Kuntze) Iltis | 9 images |
| Gentianopsis virgata (Raf.) Holub | 14 images |
| Geocaulon lividum (Richardson) Fernald | 2 images |
| Geranium bicknellii Britton | 29 images |
| Geranium carolinianum L. | 1204 images |
| Geranium columbinum L. | 1132 images |
| Geranium dissectum L. | 5474 images |
| Geranium divaricatum Ehrh. | 32 images |
| Geranium homeanum Turcz. | 20 images |
| Geranium ibericum Cav. | 460 images |
| Geranium lucidum L. | 2298 images |
| Geranium maculatum L. | 1276 images |
| Geranium molle L. | 8448 images |
| Geranium oreganum Howell | 13 images |
| Geranium palmatum Cav. | 60 images |
| Geranium pratense L. | 7567 images |
| Geranium pusillum L. | 7804 images |
| Geranium richardsonii Fisch. & Trautv. | 18 images |
| Geranium robertianum L. | 21527 images |
| Geranium rotundifolium L. | 4264 images |
| Geranium sanguineum L. | 8370 images |
| Geranium sibiricum L. | 497 images |
| Geranium solanderi Carolin | 9 images |
| Geranium versicolor L. | 450 images |
| Geranium viscosissimum Fisch. & C.A. Mey. ex C.A. Mey. | 5 images |
| Geranium yeoi Aedo & Muñoz Garm. | 1 images |
| Geum aleppicum Jacq. | 207 images |
| Geum canadense Jacq. | 91 images |
| Geum laciniatum Murray | 448 images |
| Geum macrophyllum Willd. | 2463 images |
| Geum radiatum Michx. | 2 images |
| Geum rivale L. | 3259 images |
| Geum triflorum Pursh | 75 images |
| Geum urbanum L. | 13759 images |
| Geum virginianum L. | 12 images |
| Gilia achilleifolia Benth. | 63 images |
| Gilia capitata Sims | 459 images |
| Gilia inconspicua (Sm.) Sweet | 2 images |
| Gilia leptantha Parish | 4 images |
| Gilia ophthalmoides Brand | 5 images |
| Gilia sinuata Douglas ex Benth. | 21 images |
| Gilia tenuiflora Benth. | 18 images |
| Gilia tricolor Benth. | 365 images |
| Giliastrum rigidulum (Benth.) Rydb. | 6 images |
| Gillenia trifoliata (L.) Moench | 98 images |
| Gilmania luteola (Coville) Coville | 10 images |
| Ginkgo biloba L. | 9225 images |
| Githopsis pulchella Vatke | 28 images |
| Githopsis specularioides Nutt. | 3 images |
| Gladiolus communis L. | 3316 images |
| Gladiolus dalenii Van Geel | 513 images |
| Gladiolus italicus Mill. | 4491 images |
| Gladiolus tristis L. | 31 images |
| Glandularia bipinnatifida (Nutt.) Nutt. | 5 images |
| Glandularia canadensis (L.) Nutt. | 1 images |
| Glandularia chiricahensis Umber | 1 images |
| Glandularia gooddingii (Briq.) Solbrig | 45 images |
| Glandularia peruviana (L.) Small | 133 images |
| Glandularia polyantha Umber | 2 images |
| Glandularia pumila (Rydb.) Umber | 33 images |
| Glandularia tenera (Spreng.) Cabrera | 266 images |
| Glaucium flavum Crantz | 4969 images |
| Glaux maritima L. | 2 images |
| Glebionis segetum (L.) Fourr. | 4643 images |
| Glechoma hederacea L. | 24633 images |
| Gleditsia aquatica Marshall | 33 images |
| Gleditsia triacanthos L. | 10308 images |
| Glinus lotoides L. | 113 images |
| Glinus radiatus (Ruiz & Pav.) Rohrb. | 1 images |
| Gloriosa superba L. | 1021 images |
| Glyceria canadensis (Michx.) Trin. | 11 images |
| Glyceria leptostachya Buckley | 4 images |
| Glyceria maxima (Hartm.) Holmb. | 366 images |
| Glyceria obtusa (Muhl.) Trin. | 1 images |
| Glyceria septentrionalis Hitchc. | 2 images |
| Glyceria striata (Lam.) Hitchc. | 33 images |
| Glycine max (L.) Merr. | 2240 images |
| Glycosmis parviflora (Sims) Little | 19 images |
| Glycyrrhiza glabra L. | 604 images |
| Glycyrrhiza lepidota Pursh | 72 images |
| Gnaphalium palustre Nutt. | 35 images |
| Gnaphalium uliginosum L. | 1050 images |
| Gomphrena caespitosa Torr. | 10 images |
| Gomphrena globosa L. | 2704 images |
| Gomphrena haageana Klotzsch | 174 images |
| Gomphrena nitida Rothr. | 5 images |
| Gomphrena serrata L. | 343 images |
| Gomphrena sonorae Torr. | 2 images |
| Goodyera oblongifolia Raf. | 192 images |
| Goodyera pubescens (Willd.) R. Br. | 1 images |
| Gossypium hirsutum L. | 494 images |
| Gouania lupuloides (L.) Urb. | 34 images |
| Graptopetalum rusbyi (Greene) Rose | 44 images |
| Gratiola aurea Pursh | 5 images |
| Gratiola neglecta Torr. | 18 images |
| Gratiola virginiana L. | 8 images |
| Grayia spinosa (Hook.) Moq. | 56 images |
| Grevillea robusta A. Cunn. ex R. Br. | 1 images |
| Grewia asiatica L. | 59 images |
| Grindelia camporum Greene | 2 images |
| Grindelia grandiflora Hook. | 3 images |
| Grindelia hirsutula Hook. & Arn. | 69 images |
| Grindelia integrifolia DC. | 90 images |
| Grindelia lanceolata Nutt. | 41 images |
| Grindelia scabra Greene | 3 images |
| Grindelia squarrosa (Pursh) Dunal | 293 images |
| Grindelia subalpina Greene | 6 images |
| Grusonia emoryi (Engelm.) Pinkava | 2 images |
| Grusonia kunzei (Rose) Pinkava | 3 images |
| Guaiacum angustifolium Engelm. | 8 images |
| Guaiacum officinale L. | 202 images |
| Guaiacum sanctum L. | 153 images |
| Guapira discolor (Spreng.) Little | 3 images |
| Guapira obtusata (Jacq.) Little | 1 images |
| Guettarda elliptica Sw. | 1 images |
| Guettarda scabra (L.) Vent. | 44 images |
| Guettarda speciosa L. | 168 images |
| Gunnera tinctoria (Molina) Mirb. | 2729 images |
| Gutierrezia sarothrae (Pursh) Britton & Rusby | 64 images |
| Guzmania monostachia (L.) Rusby ex Mez | 460 images |
| Gymnanthes lucida Sw. | 10 images |
| Gymnocarpium disjunctum (Rupr.) Ching | 3 images |
| Gymnocarpium dryopteris (L.) Newman | 642 images |
| Gymnocarpium robertianum (Hoffm.) Newman | 255 images |
| Gymnocladus dioicus (L.) K. Koch | 1 images |
| Gynura aurantiaca (Blume) DC. | 164 images |
| Gypsophila elegans M. Bieb. | 6 images |
| Gypsophila muralis L. | 464 images |
| Gypsophila oldhamiana Miq. | 11 images |
| Gypsophila paniculata L. | 1231 images |
| Gypsophila pilosa Huds. | 41 images |
| Gypsophila repens L. | 1319 images |
| Gypsophila scorzonerifolia Ser. | 3 images |
| Habenaria quinqueseta (Michx.) Eaton | 2 images |
| Habenaria repens Nutt. | 10 images |
| Habranthus robustus Herb. ex Sweet | 5 images |
| Habranthus tubispathus (L'Hér.) Traub | 6 images |
| Hackelia cusickii (Piper) Brand | 2 images |
| Hackelia deflexa (Wahlenb.) Opiz | 19 images |
| Hackelia floribunda (Lehm.) I.M. Johnst. | 1 images |
| Hackelia mundula (Jeps.) Ferris | 2 images |
| Hackelia virginiana (L.) I.M. Johnst. | 1 images |
| Hackelochloa granularis (L.) Kuntze | 9 images |
| Hainardia cylindrica (Willd.) Greuter | 20 images |
| Halesia carolina L. | 422 images |
| Halimium lasianthum (Lam.) Spach | 6 images |
| Halimodendron halodendron (Pall.) Voss | 18 images |
| Halodule wrightii Asch. | 3 images |
| Halophila decipiens Ostenf. | 2 images |
| Hamamelis vernalis Sarg. | 14 images |
| Hamamelis virginiana L. | 2797 images |
| Hamelia patens Jacq. | 1027 images |
| Harperocallis flava McDaniel | 1 images |
| Harpullia arborea (Blanco) Radlk. | 52 images |
| Harrimanella hypnoides (L.) Coville | 27 images |
| Harrisia fragrans Small ex Britton & Rose | 2 images |
| Hasteola suaveolens (L.) Pojark. | 17 images |
| Hastingsia serpentinicola Becking | 2 images |
| Hazardia squarrosa (Hook. & Arn.) Greene | 12 images |
| Hechtia glomerata Zucc. | 23 images |
| Hedeoma acinoides Scheele | 5 images |
| Hedeoma drummondii Benth. | 6 images |
| Hedeoma hispida Pursh | 2 images |
| Hedeoma nana (Torr.) Briq. | 11 images |
| Hedeoma pulegioides (L.) Pers. | 24 images |
| Hedera colchica (K. Koch) K. Koch | 1 images |
| Hedera helix L. | 23547 images |
| Hedysarum alpinum L. | 8 images |
| Hedysarum boreale Nutt. | 8 images |
| Hedysarum occidentale Greene | 2 images |
| Hedysarum sulphurescens Rydb. | 4 images |
| Heimia salicifolia (Kunth) Link | 47 images |
| Helenium autumnale L. | 1374 images |
| Helenium elegans DC. | 11 images |
| Helenium flexuosum Raf. | 65 images |
| Helenium microcephalum DC. | 18 images |
| Helenium puberulum DC. | 84 images |
| Helianthella castanea Greene | 16 images |
| Helianthemum arenicola Chapm. | 1 images |
| Helianthemum carolinianum (Walter) Michx. | 5 images |
| Helianthemum corymbosum Michx. | 10 images |
| Helianthemum georgianum Chapm. | 6 images |
| Helianthemum rosmarinifolium Pursh | 2 images |
| Helianthemum salicifolium (L.) Mill. | 310 images |
| Helianthus agrestis Pollard | 2 images |
| Helianthus angustifolius L. | 111 images |
| Helianthus annuus L. | 15162 images |
| Helianthus atrorubens L. | 20 images |
| Helianthus californicus DC. | 27 images |
| Helianthus ciliaris DC. | 15 images |
| Helianthus debilis Nutt. | 418 images |
| Helianthus decapetalus L. | 277 images |
| Helianthus divaricatus L. | 877 images |
| Helianthus giganteus L. | 966 images |
| Helianthus heterophyllus Nutt. | 7 images |
| Helianthus hirsutus Raf. | 76 images |
| Helianthus maximiliani Schrad. | 471 images |
| Helianthus niveus (Benth.) Brandegee | 56 images |
| Helianthus occidentalis Riddell | 34 images |
| Helianthus paradoxus Heiser | 5 images |
| Helianthus pauciflorus Nutt. | 173 images |
| Helianthus petiolaris Nutt. | 545 images |
| Helianthus pumilus Nutt. | 15 images |
| Helianthus silphioides Nutt. | 19 images |
| Helianthus strumosus L. | 72 images |
| Helianthus tuberosus L. | 7478 images |
| Heliconia latispatha Benth. | 360 images |
| Heliconia rostrata Ruiz & Pav. | 1839 images |
| Heliomeris multiflora Nutt. | 54 images |
| Heliopsis helianthoides (L.) Sweet | 2080 images |
| Heliotropium amplexicaule Vahl | 315 images |
| Heliotropium angiospermum Murray | 169 images |
| Heliotropium anomalum Hook. & Arn. | 16 images |
| Heliotropium arborescens L. | 1445 images |
| Heliotropium curassavicum L. | 652 images |
| Heliotropium europaeum L. | 4857 images |
| Heliotropium greggii Torr. | 12 images |
| Heliotropium indicum L. | 538 images |
| Heliotropium procumbens Mill. | 15 images |
| Heliotropium ramosissimum (Lehm.) DC. | 2 images |
| Heliotropium supinum L. | 138 images |
| Heliotropium tenellum (Nutt.) Torr. | 38 images |
| Helleborus foetidus L. | 11260 images |
| Helleborus niger L. | 4608 images |
| Helleborus orientalis Lam. | 4959 images |
| Helleborus viridis L. | 4951 images |
| Helonias bullata L. | 31 images |
| Hemerocallis fulva (L.) L. | 9806 images |
| Hemerocallis lilioasphodelus L. | 5131 images |
| Hemerocallis minor Mill. | 868 images |
| Hemigraphis alternata (Burm. f.) T. Anderson | 2 images |
| Hemizonia congesta DC. | 97 images |
| Hemizonia kelloggii Greene | 5 images |
| Hepatica nobilis Schreb. | 1747 images |
| Heracleum mantegazzianum Sommier & Levier | 2595 images |
| Heracleum sphondylium L. | 19756 images |
| Herbertia lahue (Molina) Goldblatt | 141 images |
| Herniaria glabra L. | 612 images |
| Herniaria hirsuta L. | 284 images |
| Herniaria incana Lam. | 55 images |
| Hesperaloe parviflora (Torr.) J.M. Coult. | 2 images |
| Hesperevax acaulis (Kellogg) Greene | 8 images |
| Hesperis matronalis L. | 7102 images |
| Hesperocnide tenella Torr. | 15 images |
| Hesperocyparis arizonica (Greene) Bartel | 361 images |
| Hesperocyparis bakeri (Jeps.) Bartel | 4 images |
| Hesperocyparis forbesii (Jeps.) Bartel | 1 images |
| Hesperocyparis macrocarpa (Hartw.) Bartel | 306 images |
| Hesperolinon californicum (Benth.) Small | 1 images |
| Hesperolinon drymarioides (Curran) Small | 3 images |
| Hesperoyucca newberryi (McKelvey) Clary | 1 images |
| Heteranthera dubia (Jacq.) MacMill. | 24 images |
| Heteranthera limosa (Sw.) Willd. | 45 images |
| Heteranthera reniformis Ruiz & Pav. | 110 images |
| Heteromeles arbutifolia (Lindl.) M. Roem. | 7 images |
| Heteropogon contortus (L.) P. Beauv. ex Roem. & Schult. | 83 images |
| Heterosperma pinnatum Cav. | 7 images |
| Heterotheca camporum (Greene) Shinners | 29 images |
| Heterotheca canescens (DC.) Shinners | 16 images |
| Heterotheca grandiflora Nutt. | 279 images |
| Heterotheca oregona (Nutt.) Shinners | 13 images |
| Heterotheca pumila (Greene) Semple | 8 images |
| Heterotheca rutteri (Rothr.) Shinners | 1 images |
| Heterotheca sessiliflora (Nutt.) Shinners | 60 images |
| Heterotheca subaxillaris (Lam.) Britton & Rusby | 278 images |
| Heterotheca villosa (Pursh) Shinners | 149 images |
| Heuchera americana L. | 269 images |
| Heuchera bracteata (Torr.) Ser. | 2 images |
| Heuchera caespitosa Eastw. | 30 images |
| Heuchera chlorantha Piper | 2 images |
| Heuchera elegans Abrams | 5 images |
| Heuchera longiflora Rydb. | 4 images |
| Heuchera maxima Greene | 27 images |
| Heuchera merriamii Eastw. | 11 images |
| Heuchera micrantha Douglas ex Lindl. | 615 images |
| Heuchera parishii Rydb. | 17 images |
| Heuchera pubescens Pursh | 5 images |
| Heuchera pulchella Wooton & Standl. | 2 images |
| Heuchera rubescens Torr. | 84 images |
| Heuchera sanguinea Engelm. | 6407 images |
| Heuchera villosa Michx. | 152 images |
| Hexalectris spicata (Walter) Barnhart | 18 images |
| Hexalectris warnockii Ames & Correll | 13 images |
| Hexastylis arifolia (Michx.) Small | 256 images |
| Hexastylis heterophylla (Ashe) Small | 1 images |
| Hexastylis rhombiformis Gaddy | 3 images |
| Hexastylis virginica (L.) Small | 32 images |
| Hibiscus acetosella Welw. ex Hiern. | 1 images |
| Hibiscus aculeatus Walter | 35 images |
| Hibiscus bifurcatus Cav. | 5 images |
| Hibiscus cannabinus L. | 375 images |
| Hibiscus coccineus Walter | 388 images |
| Hibiscus denudatus Benth. | 41 images |
| Hibiscus grandiflorus Michx. | 60 images |
| Hibiscus laevis All. | 89 images |
| Hibiscus lasiocarpos Cav. | 1 images |
| Hibiscus martianus Zucc. | 43 images |
| Hibiscus moscheutos L. | 4651 images |
| Hibiscus mutabilis L. | 1194 images |
| Hibiscus poeppigii (Spreng.) Garcke | 8 images |
| Hibiscus radiatus Cav. | 7 images |
| Hibiscus rosa-sinensis L. | 20458 images |
| Hibiscus sabdariffa L. | 956 images |
| Hibiscus striatus Cav. | 27 images |
| Hibiscus syriacus L. | 23844 images |
| Hibiscus tiliaceus L. | 955 images |
| Hibiscus trionum L. | 1030 images |
| Hieracium albiflorum Hook. | 179 images |
| Hieracium aurantiacum L. | 516 images |
| Hieracium caespitosum Dumort. | 46 images |
| Hieracium horridum Fr. | 43 images |
| Hieracium laevigatum Willd. | 130 images |
| Hieracium megacephalon Nash | 1 images |
| Hieracium murorum L. | 3460 images |
| Hieracium paniculatum L. | 12 images |
| Hieracium pilosella L. | 82 images |
| Hieracium piloselloides Vill. | 1 images |
| Hieracium sabaudum L. | 789 images |
| Hieracium scabrum Michx. | 13 images |
| Hieracium scouleri Hook. | 15 images |
| Hieracium triste Willd. ex Spreng. | 17 images |
| Hieracium umbellatum L. | 1976 images |
| Hieracium venosum L. | 147 images |
| Hierochloe occidentalis Buckley | 4 images |
| Hippeastrum puniceum (Lam.) Kuntze | 1 images |
| Hippocratea volubilis L. | 78 images |
| Hippocrepis comosa L. | 3308 images |
| Hippomane mancinella L. | 179 images |
| Hippuris vulgaris L. | 455 images |
| Hirschfeldia incana (L.) Lagr.-Foss. | 683 images |
| Hoffmannseggia glauca (Ortega) Eifert | 100 images |
| Hoffmannseggia microphylla Torr. | 29 images |
| Hoita orbicularis (Lindl.) Rydb. | 4 images |
| Holcus lanatus L. | 5143 images |
| Holcus mollis L. | 167 images |
| Holmskioldia sanguinea Retz. | 490 images |
| Holodiscus discolor (Pursh) Maxim. | 655 images |
| Holosteum umbellatum L. | 140 images |
| Holozonia filipes (Hook. & Arn.) Greene | 6 images |
| Honckenya peploides (L.) Ehrh. | 1191 images |
| Hordeum brachyantherum Nevski | 20 images |
| Hordeum bulbosum L. | 78 images |
| Hordeum jubatum L. | 466 images |
| Hordeum marinum Huds. | 246 images |
| Hordeum murinum L. | 6368 images |
| Hordeum pusillum Nutt. | 52 images |
| Hordeum vulgare L. | 8404 images |
| Horkelia cuneata Lindl. | 10 images |
| Horkelia daucifolia (Greene) Rydb. | 10 images |
| Horkelia fusca Lindl. | 15 images |
| Horkelia rydbergii Elmer | 2 images |
| Horkelia yadonii Ertter | 1 images |
| Hornungia procumbens (L.) Hayek | 98 images |
| Hosta lancifolia (Thunb.) Engl. | 111 images |
| Hosta plantaginea (Lam.) Asch. | 9088 images |
| Hottonia inflata Elliott | 4 images |
| Houstonia caerulea L. | 471 images |
| Houstonia longifolia Gaertn. | 43 images |
| Houstonia micrantha (Shinners) Terrell | 37 images |
| Houstonia purpurea L. | 109 images |
| Houstonia pusilla Schoepf | 245 images |
| Houstonia rosea (Raf.) Terrell | 10 images |
| Houstonia rubra Cav. | 18 images |
| Houstonia serpyllifolia Michx. | 38 images |
| Houttuynia cordata Thunb. | 1762 images |
| Hovenia dulcis Thunb. | 206 images |
| Hudsonia ericoides L. | 8 images |
| Hudsonia tomentosa Nutt. | 13 images |
| Humulus japonicus Siebold & Zucc. | 31 images |
| Humulus lupulus L. | 9347 images |
| Hunnemannia fumariifolia Sweet | 62 images |
| Hunzikeria texana (Torr.) D'Arcy | 4 images |
| Hura crepitans L. | 419 images |
| Hyacinthoides hispanica (Mill.) Rothm. | 4675 images |
| Hyacinthoides non-scripta (L.) Chouard ex Rothm. | 9795 images |
| Hyacinthus orientalis L. | 10044 images |
| Hybanthus verticillatus (Ortega) Baill. | 9 images |
| Hydrangea arborescens L. | 4939 images |
| Hydrangea cinerea Small | 14 images |
| Hydrangea paniculata Siebold | 6229 images |
| Hydrangea quercifolia W. Bartram | 1418 images |
| Hydrastis canadensis L. | 138 images |
| Hydrocharis morsus-ranae L. | 417 images |
| Hydrocleys nymphoides (Humb. & Bonpl. ex Willd.) Buchenau | 41 images |
| Hydrocotyle americana L. | 49 images |
| Hydrocotyle bonariensis Comm. ex Lam. | 159 images |
| Hydrocotyle bowlesioides Mathias & Constance | 7 images |
| Hydrocotyle ranunculoides L. f. | 88 images |
| Hydrocotyle sibthorpioides Lam. | 782 images |
| Hydrocotyle umbellata L. | 57 images |
| Hydrocotyle verticillata Thunb. | 577 images |
| Hydrolea ovata Nutt. ex Choisy | 2 images |
| Hydrolea quadrivalvis Walter | 5 images |
| Hydrolea spinosa L. | 37 images |
| Hydrophyllum appendiculatum Michx. | 137 images |
| Hydrophyllum canadense L. | 14 images |
| Hydrophyllum capitatum Douglas ex Benth. | 106 images |
| Hydrophyllum fendleri (A. Gray) A. Heller | 1 images |
| Hydrophyllum macrophyllum Nutt. | 23 images |
| Hydrophyllum virginianum L. | 725 images |
| Hygrophila corymbosa (Blume) Lindau | 26 images |
| Hygrophila costata Nees | 43 images |
| Hylocereus undatus (Haw.) Britton & Rose | 2083 images |
| Hylotelephium spectabile (Boreau) H. Ohba | 37 images |
| Hylotelephium telephioides (Michx.) H. Ohba | 2 images |
| Hylotelephium telephium (L.) H. Ohba | 5 images |
| Hymenachne amplexicaulis (Rudge) Nees | 42 images |
| Hymenocallis coronaria (Leconte) Kunth | 11 images |
| Hymenocallis liriosme (Raf.) Shinners | 176 images |
| Hymenocallis littoralis (Jacq.) Salisb. | 1640 images |
| Hymenocallis occidentalis (Leconte) Kunth | 13 images |
| Hymenocallis rotata (Ker Gawl.) Herb. | 5 images |
| Hymenopappus artemisiifolius DC. | 65 images |
| Hymenopappus filifolius Hook. | 55 images |
| Hymenopappus scabiosaeus L'Hér. | 5 images |
| Hymenopappus tenuifolius Pursh | 8 images |
| Hymenophyllum tunbrigense (L.) Sm. | 125 images |
| Hymenoxys odorata DC. | 14 images |
| Hymenoxys richardsonii (Hook.) Cockerell | 6 images |
| Hymenoxys subintegra Cockerell | 2 images |
| Hyoscyamus albus L. | 1751 images |
| Hyoscyamus niger L. | 1242 images |
| Hyparrhenia hirta (L.) Stapf | 848 images |
| Hyparrhenia rufa (Nees) Stapf | 23 images |
| Hypecoum imberbe Sm. | 488 images |
| Hypecoum pendulum L. | 43 images |
| Hypelate trifoliata Sw. | 2 images |
| Hypericum androsaemum L. | 6418 images |
| Hypericum ascyron L. | 32 images |
| Hypericum calycinum L. | 5678 images |
| Hypericum canadense L. | 3 images |
| Hypericum canariense L. | 243 images |
| Hypericum cistifolium Lam. | 9 images |
| Hypericum concinnum Benth. | 17 images |
| Hypericum crux-andreae (L.) Crantz | 3 images |
| Hypericum densiflorum Pursh | 8 images |
| Hypericum denticulatum Walter | 1 images |
| Hypericum ellipticum Hook. | 8 images |
| Hypericum fasciculatum Lam. | 26 images |
| Hypericum frondosum Michx. | 77 images |
| Hypericum gentianoides (L.) Britton, Sterns & Poggenb. | 19 images |
| Hypericum hookerianum Wight & Arn. | 12 images |
| Hypericum humifusum L. | 892 images |
| Hypericum hypericoides (L.) Crantz | 237 images |
| Hypericum kalmianum L. | 140 images |
| Hypericum mutilum L. | 111 images |
| Hypericum myrtifolium Lam. | 6 images |
| Hypericum perforatum L. | 16511 images |
| Hypericum prolificum L. | 185 images |
| Hypericum punctatum Lam. | 205 images |
| Hypericum scouleri Hook. | 43 images |
| Hypericum sphaerocarpum Michx. | 8 images |
| Hypericum tetrapetalum Lam. | 40 images |
| Hypochaeris glabra L. | 2288 images |
| Hypochaeris radicata L. | 9421 images |
| Hypoxis hirsuta (L.) Coville | 278 images |
| Hypoxis juncea Sm. | 12 images |
| Hyptis alata (Raf.) Shinners | 13 images |
| Hyptis emoryi Torr. | 58 images |
| Hyptis pectinata (L.) Poit. | 10 images |
| Hyptis spicigera Lam. | 19 images |
| Hyptis verticillata Jacq. | 13 images |
| Hyssopus officinalis L. | 2174 images |
| Iberis amara L. | 1632 images |
| Iberis carnosa Willd. | 159 images |
| Iberis gibraltarica L. | 27 images |
| Iberis sempervirens L. | 4676 images |
| Iberis umbellata L. | 1413 images |
| Ibicella lutea (Lindl.) Van Eselt. | 145 images |
| Idesia polycarpa Maxim. | 98 images |
| Ilex ambigua (Michx.) Torr. | 4 images |
| Ilex aquifolium L. | 15269 images |
| Ilex cassine L. | 109 images |
| Ilex collina Alexander | 7 images |
| Ilex coriacea (Pursh) Chapm. | 17 images |
| Ilex cornuta Lindl. & Paxton | 718 images |
| Ilex crenata Thunb. | 495 images |
| Ilex decidua Walter | 313 images |
| Ilex glabra (L.) A. Gray | 158 images |
| Ilex myrtifolia Walter | 4 images |
| Ilex opaca Aiton | 1297 images |
| Ilex rotunda Thunb. | 50 images |
| Ilex verticillata (L.) A. Gray | 1164 images |
| Ilex vomitoria Aiton | 729 images |
| Iliamna bakeri (Jeps.) Wiggins | 16 images |
| Iliamna latibracteata Wiggins | 6 images |
| Illecebrum verticillatum L. | 215 images |
| Illicium parviflorum Michx. ex Vent. | 6 images |
| Impatiens aurella Rydb. | 4 images |
| Impatiens balsamina L. | 2225 images |
| Impatiens capensis Meerb. | 2225 images |
| Impatiens glandulifera Royle | 13732 images |
| Impatiens noli-tangere L. | 2280 images |
| Impatiens pallida Nutt. | 920 images |
| Imperata brasiliensis Trin. | 1 images |
| Imperata brevifolia Vasey | 1 images |
| Indigofera decora Lindl. | 48 images |
| Indigofera hendecaphylla Jacq. | 39 images |
| Indigofera hirsuta L. | 180 images |
| Indigofera miniata Ortega | 78 images |
| Indigofera suffruticosa Mill. | 75 images |
| Indigofera tinctoria L. | 295 images |
| Inula britannica L. | 784 images |
| Inula helenium L. | 2462 images |
| Inula salicina L. | 1107 images |
| Iodanthus pinnatifidus (Michx.) Steud. | 51 images |
| Ionopsis utricularioides (Sw.) Lindl. | 78 images |
| Ipomoea alba L. | 584 images |
| Ipomoea amnicola Morong | 13 images |
| Ipomoea aquatica Forssk. | 322 images |
| Ipomoea asarifolia (Desr.) Roem. & Schult. | 142 images |
| Ipomoea batatas (L.) Lam. | 3768 images |
| Ipomoea cairica (L.) Sweet | 1448 images |
| Ipomoea carnea Jacq. | 915 images |
| Ipomoea coccinea L. | 3 images |
| Ipomoea cordatotriloba Dennst. | 411 images |
| Ipomoea costellata Torr. | 9 images |
| Ipomoea cristulata Hallier f. | 50 images |
| Ipomoea hederacea Jacq. | 493 images |
| Ipomoea hederifolia L. | 673 images |
| Ipomoea imperati (Vahl) Griseb. | 232 images |
| Ipomoea lacunosa L. | 327 images |
| Ipomoea leptophylla Torr. | 32 images |
| Ipomoea longifolia Benth. | 15 images |
| Ipomoea nil (L.) Roth | 480 images |
| Ipomoea pandurata (L.) G. Mey. | 282 images |
| Ipomoea pes-caprae (L.) R. Br. | 783 images |
| Ipomoea pubescens Lam. | 19 images |
| Ipomoea purpurea (L.) Roth | 7462 images |
| Ipomoea quamoclit L. | 673 images |
| Ipomoea sagittata Poir. | 153 images |
| Ipomoea setosa Ker Gawl. | 4 images |
| Ipomoea shumardiana (Torr.) Shinners | 3 images |
| Ipomoea tenuiloba Torr. | 14 images |
| Ipomoea ternifolia Cav. | 23 images |
| Ipomoea tiliacea (Willd.) Choisy | 118 images |
| Ipomoea tricolor Cav. | 537 images |
| Ipomoea triloba L. | 261 images |
| Ipomoea violacea L. | 21 images |
| Ipomoea wrightii A. Gray | 1 images |
| Ipomopsis aggregata (Pursh) V.E. Grant | 87 images |
| Ipomopsis arizonica (Greene) Wherry | 7 images |
| Ipomopsis rubra (L.) Wherry | 134 images |
| Iresine diffusa Humb. & Bonpl. ex Willd. | 2981 images |
| Iresine rhizomatosa Standl. | 2 images |
| Iris aphylla L. | 60 images |
| Iris brevicaulis Raf. | 16 images |
| Iris chrysophylla Howell | 19 images |
| Iris cristata Aiton | 171 images |
| Iris douglasiana Herb. | 329 images |
| Iris ensata Thunb. | 344 images |
| Iris foetidissima L. | 3530 images |
| Iris fulva Ker Gawl. | 22 images |
| Iris germanica L. | 13 images |
| Iris giganticaerulea Small | 22 images |
| Iris hartwegii Baker | 45 images |
| Iris hexagona Walter | 5 images |
| Iris lacustris Nutt. | 6 images |
| Iris macrosiphon Torr. | 68 images |
| Iris missouriensis Nutt. | 97 images |
| Iris orientalis Mill. | 1055 images |
| Iris pallida Lam. | 2035 images |
| Iris pseudacorus L. | 8919 images |
| Iris pumila L. | 1385 images |
| Iris purdyi Eastw. | 13 images |
| Iris sanguinea Hornem. | 2 images |
| Iris setosa Pall. ex Link | 33 images |
| Iris sibirica L. | 2091 images |
| Iris spuria L. | 444 images |
| Iris tectorum Maxim. | 53 images |
| Iris tenax Douglas ex Lindl. | 40 images |
| Iris tenuissima Dykes | 13 images |
| Iris tridentata Pursh | 2 images |
| Iris variegata L. | 459 images |
| Iris verna L. | 39 images |
| Iris versicolor L. | 802 images |
| Iris virginica L. | 109 images |
| Iris xiphium L. | 1941 images |
| Isatis tinctoria L. | 3380 images |
| Ischaemum rugosum Salisb. | 1 images |
| Isocarpha oppositifolia (L.) Cass. | 27 images |
| Isocoma acradenia (Greene) Greene | 22 images |
| Isocoma arguta Greene | 11 images |
| Isolepis cernua (Vahl) Roem. & Schult. | 104 images |
| Isotria medeoloides (Pursh) Raf. | 19 images |
| Itea virginica L. | 79 images |
| Iva annua L. | 113 images |
| Iva asperifolia Less. | 6 images |
| Iva axillaris Pursh | 6 images |
| Iva frutescens L. | 64 images |
| Iva imbricata Walter | 13 images |
| Ivesia tweedyi Rydb. | 3 images |
| Ixia maculata L. | 335 images |
| Ixia polystachya L. | 8 images |
| Ixora coccinea L. | 4274 images |
| Ixora pavetta Andrews | 6 images |
| Jaborosa integrifolia Lam. | 40 images |
| Jacaranda mimosifolia D. Don | 15 images |
| Jacquemontia agrestis (Mart. ex Choisy) Meisn. | 8 images |
| Jacquemontia havanensis (Jacq.) Urb. | 3 images |
| Jacquemontia tamnifolia (L.) Griseb. | 161 images |
| Jacquinia armillaris Jacq. | 33 images |
| Jacquinia keyensis Mez | 6 images |
| Jaegeria hirta (Lag.) Less. | 25 images |
| Jasione montana L. | 5270 images |
| Jasminum dichotomum Vahl | 1 images |
| Jasminum fluminense Vell. | 281 images |
| Jasminum mesnyi Hance | 2027 images |
| Jasminum nudiflorum Lindl. | 4860 images |
| Jasminum officinale L. | 4125 images |
| Jasminum sambac (L.) Aiton | 1956 images |
| Jatropha cuneata Wiggins & Rollins | 8 images |
| Jatropha curcas L. | 567 images |
| Jatropha gossypiifolia L. | 843 images |
| Jatropha integerrima Jacq. | 1665 images |
| Jatropha macrorhiza Benth. | 5 images |
| Jatropha multifida L. | 868 images |
| Jeffersonia diphylla (L.) Pers. | 109 images |
| Jepsonia heterandra Eastw. | 13 images |
| Jepsonia malvifolia (Greene) Small | 10 images |
| Jepsonia parryi (Torr.) Small | 27 images |
| Juglans ailantifolia Carrière | 4 images |
| Juglans californica S. Watson | 4 images |
| Juglans cinerea L. | 411 images |
| Juglans nigra L. | 7279 images |
| Juglans regia L. | 17766 images |
| Juncus acutus L. | 1038 images |
| Juncus alpinoarticulatus Chaix | 133 images |
| Juncus arcticus Willd. | 42 images |
| Juncus articulatus L. | 672 images |
| Juncus biglumis L. | 10 images |
| Juncus bolanderi Engelm. | 2 images |
| Juncus brachycarpus Engelm. | 1 images |
| Juncus brachycephalus (Engelm.) Buchenau | 3 images |
| Juncus bufonius L. | 373 images |
| Juncus bulbosus L. | 180 images |
| Juncus capitatus Weigel | 94 images |
| Juncus castaneus Sm. | 16 images |
| Juncus compressus Jacq. | 155 images |
| Juncus cooperi Engelm. | 2 images |
| Juncus covillei Piper | 2 images |
| Juncus dichotomus Elliott | 7 images |
| Juncus diffusissimus Buckley | 1 images |
| Juncus dudleyi Wiegand | 7 images |
| Juncus effusus L. | 3308 images |
| Juncus ensifolius Wikstr. | 87 images |
| Juncus filiformis L. | 100 images |
| Juncus inflexus L. | 717 images |
| Juncus interior Wiegand | 3 images |
| Juncus lesueurii Bol. | 1 images |
| Juncus luciensis Ertter | 4 images |
| Juncus marginatus Rostk. | 4 images |
| Juncus maritimus Lam. | 378 images |
| Juncus mertensianus Bong. | 8 images |
| Juncus nodosus L. | 2 images |
| Juncus occidentalis Wiegand | 2 images |
| Juncus parryi Engelm. | 1 images |
| Juncus phaeocephalus Engelm. | 7 images |
| Juncus scirpoides Lam. | 3 images |
| Juncus squarrosus L. | 172 images |
| Juncus stygius L. | 10 images |
| Juncus subnodulosus Schrank | 139 images |
| Juncus tenuis Willd. | 520 images |
| Juncus torreyi Coville | 22 images |
| Juncus trifidus L. | 183 images |
| Juncus triglumis L. | 67 images |
| Juncus validus Coville | 1 images |
| Juniperus californica Carrière | 19 images |
| Juniperus communis L. | 8185 images |
| Juniperus deppeana Steud. | 90 images |
| Juniperus flaccida Schltdl. | 44 images |
| Juniperus horizontalis Moench | 1746 images |
| Juniperus monosperma (Engelm.) Sarg. | 48 images |
| Juniperus occidentalis Hook. | 221 images |
| Juniperus osteosperma (Torr.) Little | 378 images |
| Juniperus pinchotii Sudw. | 25 images |
| Juniperus sabina L. | 1322 images |
| Juniperus scopulorum Sarg. | 504 images |
| Juniperus virginiana L. | 4362 images |
| Justicia americana (L.) Vahl | 166 images |
| Justicia angusta (Chapm.) Small | 2 images |
| Justicia brandegeeana Wassh. & L.B. Sm. | 2 images |
| Justicia longii Hilsenb. | 7 images |
| Justicia pectoralis Jacq. | 62 images |
| Justicia pilosella (Nees) Hilsenb. | 35 images |
| Justicia spicigera Schltdl. | 212 images |
| Kalanchoe blossfeldiana Poelln. | 13303 images |
| Kalanchoe daigremontiana Raym.-Hamet & H. Perrier | 4004 images |
| Kalanchoe delagoensis Eckl. & Zeyh. | 915 images |
| Kalanchoe fedtschenkoi Raym.-Hamet & H. Perrier | 2 images |
| Kalanchoe gastonis-bonnieri Raym.-Hamet & H. Perrier | 421 images |
| Kalanchoe integra (Medik.) Kuntze | 1 images |
| Kalanchoe laciniata (L.) DC. | 448 images |
| Kalanchoe pinnata (Lam.) Pers. | 1081 images |
| Kallstroemia californica (S. Watson) Vail | 1 images |
| Kallstroemia maxima (L.) Hook. & Arn. | 50 images |
| Kalmia angustifolia L. | 425 images |
| Kalmia hirsuta Walter | 4 images |
| Kalmia latifolia L. | 1520 images |
| Kalmia polifolia Wangenh. | 112 images |
| Keckiella antirrhinoides (Benth.) Straw | 53 images |
| Keckiella breviflora (Lindl.) Straw | 59 images |
| Keckiella cordifolia (Benth.) Straw | 135 images |
| Kelloggia galioides Torr. | 8 images |
| Kerria japonica (L.) DC. | 7413 images |
| Khaya senegalensis (Desr.) A. Juss. | 4 images |
| Kickxia elatine (L.) Dumort. | 306 images |
| Kickxia spuria (L.) Dumort. | 718 images |
| Kniphofia uvaria (L.) Oken | 5852 images |
| Kobresia myosuroides (Vill.) Fiori | 10 images |
| Kobresia simpliciuscula (Wahlenb.) Mack. | 10 images |
| Koeberlinia spinosa Zucc. | 56 images |
| Koeleria macrantha (Ledeb.) Schult. | 134 images |
| Koelreuteria paniculata Laxm. | 8455 images |
| Koenigia islandica L. | 4 images |
| Kolkwitzia amabilis Graebn. | 5155 images |
| Krameria lanceolata Torr. | 41 images |
| Krigia occidentalis Nutt. | 3 images |
| Krigia virginica (L.) Willd. | 68 images |
| Krugiodendron ferreum (Vahl) Urb. | 26 images |
| Kummerowia stipulacea (Maxim.) Makino | 3 images |
| Kummerowia striata (Thunb.) Schindl. | 148 images |
| Kyllinga brevifolia Rottb. | 71 images |
| Kyllinga odorata Vahl | 10 images |
| Kyllinga pumila Michx. | 9 images |
| Lablab purpureus (L.) Sweet | 780 images |
| Laburnum anagyroides Medik. | 5723 images |
| Lachnocaulon anceps (Walter) Morong | 1 images |
| Lactuca biennis (Moench) Fernald | 125 images |
| Lactuca canadensis L. | 365 images |
| Lactuca floridana (L.) Gaertn. | 533 images |
| Lactuca graminifolia Michx. | 7 images |
| Lactuca hirsuta Muhl. ex Nutt. | 22 images |
| Lactuca saligna L. | 350 images |
| Lactuca sativa L. | 4677 images |
| Lactuca serriola L. | 12064 images |
| Lactuca virosa L. | 3210 images |
| Laelia rubescens Lindl. | 60 images |
| Lagascea decipiens Hemsl. | 2 images |
| Lagascea mollis Cav. | 28 images |
| Lagenaria siceraria (Molina) Standl. | 768 images |
| Lagerstroemia indica L. | 15289 images |
| Lagophylla ramosissima Nutt. | 5 images |
| Lagurus ovatus L. | 3190 images |
| Lamarckia aurea (L.) Moench | 541 images |
| Lamium album L. | 7494 images |
| Lamium amplexicaule L. | 5014 images |
| Lamium maculatum L. | 4 images |
| Lamium purpureum L. | 15871 images |
| Lamprocapnos spectabilis (L.) Fukuhara | 2383 images |
| Lantana achyranthifolia Desf. | 64 images |
| Lantana camara L. | 22256 images |
| Lantana canescens Kunth | 382 images |
| Lantana depressa Small | 5 images |
| Lantana involucrata L. | 163 images |
| Lantana montevidensis (Spreng.) Briq. | 1571 images |
| Laportea aestuans (L.) Chew | 646 images |
| Laportea canadensis (L.) Weddell | 1 images |
| Laportea interrupta (L.) Chew | 9 images |
| Lappula squarrosa (Retz.) Dumort. | 207 images |
| Lapsana communis L. | 13030 images |
| Larix decidua Mill. | 5972 images |
| Larix lyallii Parl. | 33 images |
| Larix occidentalis Nutt. | 144 images |
| Larrea tridentata (DC.) Coville | 137 images |
| Lasiacis divaricata (L.) Hitchc. | 21 images |
| Lastarriaea coriacea (Goodman) Hoover | 3 images |
| Lasthenia californica DC. ex Lindl. | 124 images |
| Lasthenia conjugens Greene | 8 images |
| Lasthenia ferrisiae Ornduff | 5 images |
| Lasthenia glaberrima DC. | 9 images |
| Lasthenia glabrata Lindl. | 39 images |
| Lasthenia gracilis (DC.) Greene | 5 images |
| Lasthenia minor (DC.) Ornduff | 11 images |
| Lathyrus angulatus L. | 120 images |
| Lathyrus aphaca L. | 527 images |
| Lathyrus brachycalyx Rydb. | 18 images |
| Lathyrus cicera L. | 1593 images |
| Lathyrus glandulosus Broich | 9 images |
| Lathyrus grimesii Barneby | 3 images |
| Lathyrus hirsutus L. | 521 images |
| Lathyrus inconspicuus L. | 1 images |
| Lathyrus japonicus Willd. | 577 images |
| Lathyrus jepsonii Greene | 9 images |
| Lathyrus lanszwertii Kellogg | 13 images |
| Lathyrus latifolius L. | 9541 images |
| Lathyrus nissolia L. | 387 images |
| Lathyrus ochroleucus Hook. | 28 images |
| Lathyrus odoratus L. | 3375 images |
| Lathyrus palustris L. | 200 images |
| Lathyrus pauciflorus Fernald | 14 images |
| Lathyrus pratensis L. | 4299 images |
| Lathyrus sativus L. | 123 images |
| Lathyrus sphaericus Retz. | 465 images |
| Lathyrus splendens Kellogg | 7 images |
| Lathyrus sylvestris L. | 2410 images |
| Lathyrus tingitanus L. | 536 images |
| Lathyrus tuberosus L. | 2014 images |
| Lathyrus venosus Muhl. ex Willd. | 7 images |
| Lathyrus vestitus Nutt. | 3 images |
| Laurus nobilis L. | 13127 images |
| Lavandula angustifolia Mill. | 9547 images |
| Lavandula stoechas L. | 7321 images |
| Lavatera arborea L. | 335 images |
| Lavatera cretica L. | 26 images |
| Lavatera olbia L. | 131 images |
| Lavatera thuringiaca L. | 67 images |
| Lavatera trimestris L. | 355 images |
| Layia glandulosa (Hook.) Hook. & Arn. | 43 images |
| Layia heterotricha (DC.) Hook. & Arn. | 12 images |
| Leavenworthia exigua Rollins | 12 images |
| Leavenworthia stylosa A. Gray | 1 images |
| Leavenworthia uniflora (Michx.) Britton | 3 images |
| Lechea minor L. | 2 images |
| Lechea mucronata Raf. | 8 images |
| Lechea racemulosa Michx. | 2 images |
| Ledum glandulosum Nutt. | 1 images |
| Ledum groenlandicum Oeder | 30 images |
| Leersia hexandra Sw. | 42 images |
| Leersia lenticularis Michx. | 1 images |
| Leersia oryzoides (L.) Sw. | 238 images |
| Leersia virginica Willd. | 42 images |
| Leitneria floridana Chapm. | 7 images |
| Lemna aequinoctialis Welw. | 59 images |
| Lemna gibba L. | 68 images |
| Lemna minor L. | 872 images |
| Lemna minuta Kunth | 111 images |
| Lemna trisulca L. | 100 images |
| Lemna turionifera Landolt | 19 images |
| Lemna valdiviana Phil. | 7 images |
| Lens culinaris Medik. | 565 images |
| Leonotis nepetifolia (L.) R. Br. | 170 images |
| Leontodon autumnalis L. | 2 images |
| Leontodon hispidus L. | 3140 images |
| Leonurus cardiaca L. | 3200 images |
| Leonurus sibiricus L. | 263 images |
| Lepechinia cardiophylla Epling | 1 images |
| Lepechinia fragrans (Greene) Epling | 23 images |
| Lepechinia ganderi Epling | 22 images |
| Lepidium apetalum Willd. | 2 images |
| Lepidium austrinum Small | 10 images |
| Lepidium bonariense L. | 79 images |
| Lepidium crenatum (Greene) Rydb. | 3 images |
| Lepidium davisii Rollins | 7 images |
| Lepidium densiflorum Schrad. | 48 images |
| Lepidium flavum Torr. | 18 images |
| Lepidium graminifolium L. | 531 images |
| Lepidium heterophyllum Benth. | 240 images |
| Lepidium hirtum (L.) Sm. | 392 images |
| Lepidium jaredii Brandegee | 5 images |
| Lepidium lasiocarpum Nutt. | 30 images |
| Lepidium latifolium L. | 754 images |
| Lepidium latipes Hook. | 3 images |
| Lepidium montanum Nutt. | 21 images |
| Lepidium nitidum Nutt. | 39 images |
| Lepidium oblongum Small | 8 images |
| Lepidium perfoliatum L. | 39 images |
| Lepidium pinnatifidum Ledeb. | 3 images |
| Lepidium ruderale L. | 228 images |
| Lepidium sativum L. | 789 images |
| Lepidium thurberi Wooton | 2 images |
| Lepidium virginicum L. | 1603 images |
| Leptochloa fusca (L.) Kunth | 20 images |
| Leptochloa panicea (Retz.) Ohwi | 5 images |
| Leptochloa scabra Nees | 3 images |
| Leptosiphon androsaceus Benth. | 8 images |
| Leptosiphon bicolor Nutt. | 12 images |
| Leptosiphon ciliatus (Benth.) Jeps. | 1 images |
| Lespedeza bicolor Turcz. | 457 images |
| Lespedeza capitata Michx. | 114 images |
| Lespedeza cyrtobotrya Miq. | 1 images |
| Lespedeza hirta (L.) Hornem. | 73 images |
| Lespedeza procumbens Michx. | 10 images |
| Lespedeza stuevei Nutt. | 6 images |
| Lespedeza texana Britton | 4 images |
| Lespedeza thunbergii (DC.) Nakai | 247 images |
| Lespedeza violacea (L.) Pers. | 3 images |
| Lespedeza virginica (L.) Britton | 90 images |
| Lessingia germanorum Cham. | 16 images |
| Lessingia hololeuca Greene | 10 images |
| Lessingia nemaclada Greene | 11 images |
| Leucaena leucocephala (Lam.) de Wit | 3457 images |
| Leucaena pulverulenta (Schltdl.) Benth. | 9 images |
| Leucaena retusa Benth. | 12 images |
| Leucanthemella serotina (L.) Tzvelev | 117 images |
| Leucanthemum lacustre (Brot.) Samp. | 2 images |
| Leucanthemum maximum (Ramond) DC. | 3033 images |
| Leucanthemum vulgare Lam. | 10316 images |
| Leucojum aestivum L. | 2040 images |
| Leucojum vernum L. | 3100 images |
| Leucophyllum candidum I.M. Johnst. | 2 images |
| Leucospora multifida (Michx.) Nutt. | 31 images |
| Leucothoe fontanesiana (Steud.) Sleumer | 464 images |
| Lewisia brachycalyx Engelm. ex A. Gray | 35 images |
| Lewisia columbiana (Howell ex A. Gray) B.L. Rob. | 1 images |
| Lewisia cotyledon (S. Watson) B.L. Rob. | 478 images |
| Lewisia disepala Rydb. | 6 images |
| Lewisia pygmaea (A. Gray) B.L. Rob. | 1 images |
| Lewisia rediviva Pursh | 150 images |
| Leycesteria formosa Wall. | 3058 images |
| Leymus arenarius (L.) Hochst. | 999 images |
| Leymus innovatus (Beal) Pilg. | 1 images |
| Leymus mollis (Trin.) Pilg. | 6 images |
| Leymus racemosus (Lam.) Tzvelev | 11 images |
| Leymus triticoides (Buckley) Pilg. | 19 images |
| Liatris aspera Michx. | 210 images |
| Liatris cylindracea Michx. | 36 images |
| Liatris elegans (Walter) Michx. | 21 images |
| Liatris gracilis Pursh | 5 images |
| Liatris pilosa (Aiton) Willd. | 11 images |
| Liatris punctata Hook. | 177 images |
| Liatris pycnostachya Michx. | 599 images |
| Liatris scariosa (L.) Willd. | 28 images |
| Liatris spicata (L.) Willd. | 2004 images |
| Liatris squarrosa (L.) Michx. | 69 images |
| Liatris squarrulosa Michx. | 7 images |
| Liatris tenuifolia Nutt. | 8 images |
| Licania michauxii Prance | 5 images |
| Licaria triandra (Sw.) Kosterm. | 6 images |
| Ligusticum canadense (L.) Britton | 16 images |
| Ligustrum japonicum Thunb. | 2768 images |
| Ligustrum lucidum W.T. Aiton | 2 images |
| Ligustrum obtusifolium Siebold & Zucc. | 103 images |
| Ligustrum ovalifolium Hassk. | 4422 images |
| Ligustrum quihoui Carrière | 12 images |
| Ligustrum sinense Lour. | 4094 images |
| Ligustrum tschonoskii Decne. | 4 images |
| Ligustrum vulgare L. | 18118 images |
| Lilaeopsis masonii Mathias & Constance | 4 images |
| Lilium bolanderi S. Watson | 1 images |
| Lilium bulbiferum L. | 9369 images |
| Lilium canadense L. | 154 images |
| Lilium candidum L. | 4063 images |
| Lilium catesbaei Walter | 22 images |
| Lilium columbianum Leichtlin | 207 images |
| Lilium kelleyanum Lemmon | 33 images |
| Lilium kelloggii Purdy | 23 images |
| Lilium lancifolium Thunb. | 1649 images |
| Lilium longiflorum Thunb. | 567 images |
| Lilium maritimum Kellogg | 17 images |
| Lilium michauxii Poir. | 23 images |
| Lilium michiganense Farw. | 74 images |
| Lilium occidentale Purdy | 1 images |
| Lilium pardalinum Kellogg | 98 images |
| Lilium parvum Kellogg | 134 images |
| Lilium philadelphicum L. | 116 images |
| Lilium superbum L. | 92 images |
| Lilium washingtonianum Kellogg | 52 images |
| Limnanthes alba Hartw. ex Benth. | 7 images |
| Limnanthes douglasii R. Br. | 142 images |
| Limnanthes floccosa Howell | 8 images |
| Limnanthes montana Jeps. | 1 images |
| Limnanthes vinculans Ornduff | 15 images |
| Limnobium laevigatum (Humb. & Bonpl. ex Willd.) Heine | 26 images |
| Limnophila indica (L.) Druce | 13 images |
| Limnophila sessiliflora (Vahl) Blume | 23 images |
| Limnosciadium pinnatum (DC.) Mathias & Constance | 13 images |
| Limonium carolinianum (Walter) Britton | 63 images |
| Limonium ramosissimum (Poir.) Maire | 9 images |
| Limonium sinuatum (L.) Mill. | 2831 images |
| Limonium vulgare Mill. | 2491 images |
| Limosella aquatica L. | 55 images |
| Linanthus concinnus Milliken | 4 images |
| Linanthus dianthiflorus (Benth.) Greene | 45 images |
| Linanthus dichotomus Benth. | 47 images |
| Linaria aeruginea (Gouan) Cav. | 243 images |
| Linaria bipartita (Vent.) Willd. | 1 images |
| Linaria dalmatica (L.) Mill. | 188 images |
| Linaria genistifolia (L.) Mill. | 206 images |
| Linaria incarnata (Vent.) Spreng. | 20 images |
| Linaria maroccana Hook. f. | 2 images |
| Linaria purpurea (L.) Mill. | 3224 images |
| Linaria repens (L.) Mill. | 3383 images |
| Linaria spartea (L.) Chaz. | 277 images |
| Linaria supina (L.) Chaz. | 1486 images |
| Linaria vulgaris Mill. | 16718 images |
| Lindera benzoin (L.) Blume | 812 images |
| Lindernia diffusa (L.) Wettst. | 2 images |
| Lindernia dubia (L.) Pennell | 214 images |
| Lindernia grandiflora Nutt. | 3 images |
| Linnaea borealis L. | 610 images |
| Linum aristatum Engelm. | 5 images |
| Linum bienne Mill. | 336 images |
| Linum catharticum L. | 629 images |
| Linum grandiflorum Desf. | 2619 images |
| Linum lewisii Pursh | 167 images |
| Linum medium (Planch.) Britton | 20 images |
| Linum neomexicanum Greene | 2 images |
| Linum perenne L. | 2571 images |
| Linum pratense (Norton) Small | 34 images |
| Linum rigidum Pursh | 17 images |
| Linum sulcatum Riddell | 4 images |
| Linum trigynum L. | 244 images |
| Linum usitatissimum L. | 5094 images |
| Linum virginianum L. | 1 images |
| Liparis loeselii (L.) Rich. | 188 images |
| Lippia graveolens Kunth | 59 images |
| Liquidambar styraciflua L. | 11365 images |
| Liriodendron tulipifera L. | 9308 images |
| Liriope muscari (Decne.) L.H. Bailey | 1 images |
| Liriope spicata (Thunb.) Lour. | 1 images |
| Listera auriculata Wiegand | 1 images |
| Listera smallii Wiegand | 1 images |
| Lithophila muscoides Sw. | 1 images |
| Lithophragma glabrum Nutt. | 49 images |
| Lithophragma tenellum Nutt. | 5 images |
| Lithospermum canescens (Michx.) Lehm. | 119 images |
| Lithospermum cobrense Greene | 13 images |
| Lithospermum incisum Lehm. | 128 images |
| Lithospermum latifolium Michx. | 7 images |
| Lithospermum officinale L. | 1454 images |
| Lithospermum ruderale Douglas ex Lehm. | 42 images |
| Lithospermum viride Greene | 2 images |
| Litsea aestivalis (L.) Fernald | 2 images |
| Littorella uniflora (L.) Asch. | 144 images |
| Livistona chinensis (Jacq.) R. Br. ex Mart. | 1 images |
| Lobelia cardinalis L. | 1793 images |
| Lobelia chinensis Lour. | 7 images |
| Lobelia dortmanna L. | 150 images |
| Lobelia erinus L. | 4859 images |
| Lobelia fenestralis Cav. | 5 images |
| Lobelia glandulosa Walter | 4 images |
| Lobelia inflata L. | 470 images |
| Lobelia kalmii L. | 53 images |
| Lobelia laxiflora Kunth | 424 images |
| Lobelia nuttallii Schult. | 1 images |
| Lobelia paludosa Nutt. | 2 images |
| Lobelia puberula Michx. | 93 images |
| Lobelia siphilitica L. | 1100 images |
| Lobelia spicata Lam. | 114 images |
| Lobularia maritima (L.) Desv. | 12436 images |
| Loeflingia squarrosa Nutt. | 2 images |
| Loeseliastrum schottii (Torr.) Timbrook | 33 images |
| Logfia gallica (L.) Coss. & Germ. | 67 images |
| Logfia minima (Sm.) Dumort. | 177 images |
| Lolium perenne L. | 2881 images |
| Lolium rigidum Gaudin | 153 images |
| Lolium temulentum L. | 29 images |
| Lomatium ciliolatum Jeps. | 2 images |
| Lomatium columbianum Mathias & Constance | 13 images |
| Lomatium dissectum (Nutt.) Mathias & Constance | 7 images |
| Lomatium engelmannii Mathias | 9 images |
| Lomatium insulare (Eastw.) Munz | 10 images |
| Lomatium latilobum (Rydb.) Mathias | 14 images |
| Lomatium parvifolium (Hook. & Arn.) Jeps. | 12 images |
| Lomatium ravenii Mathias & Constance | 5 images |
| Lomatium repostum (Jeps.) Mathias | 13 images |
| Lomatium roseanum Cronquist | 5 images |
| Lomatium stebbinsii Schlessman & Constance | 8 images |
| Lonchocarpus punctatus Kunth | 42 images |
| Lonicera caerulea L. | 1563 images |
| Lonicera caprifolium L. | 2291 images |
| Lonicera conjugialis Kellogg | 35 images |
| Lonicera dioica L. | 95 images |
| Lonicera etrusca Santi | 4240 images |
| Lonicera flava Sims | 41 images |
| Lonicera fragrantissima Lindl. & Paxton | 1921 images |
| Lonicera hirsuta Eaton | 20 images |
| Lonicera interrupta Benth. | 19 images |
| Lonicera involucrata (Richardson) Banks ex Spreng. | 755 images |
| Lonicera japonica Thunb. | 9446 images |
| Lonicera korolkowii Stapf | 3 images |
| Lonicera maackii (Rupr.) Herder | 9 images |
| Lonicera morrowii A. Gray | 65 images |
| Lonicera periclymenum L. | 6917 images |
| Lonicera pileata Oliv. | 480 images |
| Lonicera reticulata Raf. | 10 images |
| Lonicera ruprechtiana Regel | 3 images |
| Lonicera sempervirens L. | 1308 images |
| Lonicera subspicata Hook. & Arn. | 17 images |
| Lonicera tatarica L. | 4624 images |
| Lonicera villosa (Michx.) Schult. | 3 images |
| Lonicera xylosteum L. | 9511 images |
| Lophophora williamsii (Lem. ex Salm-Dyck) J.M. Coult. | 2 images |
| Lotus angustissimus L. | 223 images |
| Lotus corniculatus L. | 18520 images |
| Lotus parviflorus Desf. | 85 images |
| Lotus pedunculatus Cav. | 3420 images |
| Lotus tenuis Waldst. & Kit. ex Willd. | 1186 images |
| Ludwigia alternifolia L. | 205 images |
| Ludwigia arcuata Walter | 6 images |
| Ludwigia curtissii Chapm. | 1 images |
| Ludwigia decurrens Walter | 37 images |
| Ludwigia glandulosa Walter | 4 images |
| Ludwigia grandiflora (Michx.) Greuter & Burdet | 1150 images |
| Ludwigia linearis Walter | 9 images |
| Ludwigia linifolia Poir. | 1 images |
| Ludwigia palustris (L.) Elliott | 275 images |
| Ludwigia sphaerocarpa Elliott | 1 images |
| Ludwigia suffruticosa Walter | 4 images |
| Ludwigia virgata Michx. | 1 images |
| Luetkea pectinata (Pursh) Kuntze | 52 images |
| Luffa acutangula (L.) Roxb. | 206 images |
| Luffa aegyptiaca Mill. | 59 images |
| Luina hypoleuca Benth. | 13 images |
| Lumnitzera racemosa Willd. | 49 images |
| Lunaria annua L. | 19172 images |
| Lunaria rediviva L. | 3149 images |
| Lupinus albicaulis Douglas | 18 images |
| Lupinus albifrons Benth. | 396 images |
| Lupinus albus L. | 635 images |
| Lupinus angustiflorus Eastw. | 10 images |
| Lupinus angustifolius L. | 2988 images |
| Lupinus arboreus Sims | 616 images |
| Lupinus argenteus Pursh | 90 images |
| Lupinus bicolor Lindl. | 202 images |
| Lupinus cervinus Kellogg | 2 images |
| Lupinus chamissonis Eschsch. | 45 images |
| Lupinus citrinus Kellogg | 9 images |
| Lupinus covillei Greene | 5 images |
| Lupinus croceus Eastw. | 16 images |
| Lupinus densiflorus Benth. | 36 images |
| Lupinus diffusus Nutt. | 35 images |
| Lupinus duranii Eastw. | 26 images |
| Lupinus elmeri Greene | 4 images |
| Lupinus formosus Greene | 65 images |
| Lupinus hillii Greene | 8 images |
| Lupinus hirsutissimus Benth. | 103 images |
| Lupinus lepidus Douglas ex Lindl. | 7 images |
| Lupinus ludovicianus Greene | 8 images |
| Lupinus luteolus Kellogg | 8 images |
| Lupinus luteus L. | 483 images |
| Lupinus malacophyllus Greene | 4 images |
| Lupinus neomexicanus Greene | 7 images |
| Lupinus nootkatensis Donn ex Sims | 136 images |
| Lupinus pachylobus Greene | 1 images |
| Lupinus perennis L. | 515 images |
| Lupinus polyphyllus Lindl. | 7975 images |
| Lupinus pusillus Pursh | 10 images |
| Lupinus rivularis Douglas ex Lindl. | 1 images |
| Lupinus sellulus Kellogg | 49 images |
| Lupinus sericatus Kellogg | 7 images |
| Lupinus sericeus Pursh | 40 images |
| Lupinus sparsiflorus Benth. | 60 images |
| Lupinus spectabilis Hoover | 10 images |
| Lupinus stiversii Kellogg | 70 images |
| Lupinus subcarnosus Hook. | 24 images |
| Lupinus texensis Hook. | 378 images |
| Lupinus tidestromii Greene | 5 images |
| Lupinus tracyi Eastw. | 1 images |
| Lupinus villosus Willd. | 5 images |
| Luzula acuminata Raf. | 12 images |
| Luzula campestris (L.) DC. | 1805 images |
| Luzula congesta (Thuill.) Lej. | 35 images |
| Luzula forsteri (Sm.) DC. | 317 images |
| Luzula luzuloides (Lam.) Dandy & Wilmott | 460 images |
| Luzula multiflora (Ehrh.) Lej. | 312 images |
| Luzula parviflora (Ehrh.) Desv. | 4 images |
| Luzula spicata (L.) DC. | 60 images |
| Lychnis chalcedonica L. | 665 images |
| Lychnis coronaria (L.) Desr. | 4732 images |
| Lychnis flos-cuculi L. | 5759 images |
| Lycianthes rantonnetii (Carrière) Bitter | 111 images |
| Lycium barbarum L. | 2659 images |
| Lycium berlandieri Dunal | 14 images |
| Lycium chinense Mill. | 170 images |
| Lycium ferocissimum Miers | 186 images |
| Lycium pallidum Miers | 18 images |
| Lycopus asper Greene | 11 images |
| Lycopus europaeus L. | 5401 images |
| Lycopus rubellus Moench | 8 images |
| Lycopus uniflorus Michx. | 101 images |
| Lycopus virginicus L. | 38 images |
| Lycoris radiata (L'Hér.) Herb. | 314 images |
| Lycoris squamigera Maxim. | 347 images |
| Lygodium japonicum (Thunb.) Sw. | 99 images |
| Lygodium microphyllum (Cav.) R. Br. | 53 images |
| Lygodium palmatum (Bernh.) Sw. | 42 images |
| Lyonia ferruginea (Walter) Nutt. | 10 images |
| Lyonia ligustrina (L.) DC. | 11 images |
| Lyonia lucida (Lam.) K. Koch | 52 images |
| Lyonothamnus floribundus A. Gray | 2 images |
| Lysiloma watsonii Rose | 4 images |
| Lysimachia barystachys Bunge | 7 images |
| Lysimachia ciliata L. | 743 images |
| Lysimachia clethroides Duby | 929 images |
| Lysimachia hybrida Michx. | 1 images |
| Lysimachia japonica Thunb. | 4 images |
| Lysimachia lanceolata Walter | 21 images |
| Lysimachia nummularia L. | 3905 images |
| Lysimachia punctata L. | 8178 images |
| Lysimachia quadriflora Sims | 10 images |
| Lysimachia quadrifolia L. | 173 images |
| Lysimachia terrestris (L.) Britton, Sterns & Poggenb. | 12 images |
| Lysimachia thyrsiflora L. | 312 images |
| Lysimachia vulgaris L. | 8051 images |
| Lythrum alatum Pursh | 48 images |
| Lythrum lineare L. | 5 images |
| Lythrum salicaria L. | 23390 images |
| Lythrum thymifolia L. | 11 images |
| Lythrum tribracteatum Salzm. ex Spreng. | 84 images |
| Lythrum virgatum L. | 1120 images |
| Macbridea alba Chapm. | 1 images |
| Machaeranthera gracilis (Nutt.) Shinners | 16 images |
| Machaeranthera tagetina Greene | 4 images |
| Machaeranthera tanacetifolia (Kunth) Nees | 116 images |
| Maclura pomifera (Raf.) C.K. Schneid. | 1 images |
| Macroptilium lathyroides (L.) Urb. | 348 images |
| Macrothelypteris torresiana (Gaudich.) Ching | 156 images |
| Madia glomerata Hook. | 5 images |
| Madia radiata Kellogg | 4 images |
| Madia sativa Molina | 76 images |
| Magnolia acuminata (L.) L. | 740 images |
| Magnolia ashei Weath. | 2 images |
| Magnolia fraseri Walter | 113 images |
| Magnolia grandiflora L. | 10575 images |
| Magnolia kobus DC. | 1521 images |
| Magnolia macrophylla Michx. | 449 images |
| Magnolia stellata (Siebold & Zucc.) Maxim. | 4078 images |
| Magnolia tripetala (L.) L. | 338 images |
| Magnolia virginiana L. | 2447 images |
| Mahonia aquifolium (Pursh) Nutt. | 1061 images |
| Mahonia bealei (Fortune) Carrière | 146 images |
| Mahonia fremontii (Torr.) Fedde | 9 images |
| Mahonia nervosa (Pursh) Nutt. | 13 images |
| Mahonia repens (Lindl.) G. Don | 7 images |
| Mahonia trifoliolata (Moric.) Fedde | 24 images |
| Maianthemum canadense Desf. | 957 images |
| Maianthemum racemosum (L.) Link | 1393 images |
| Maianthemum stellatum (L.) Link | 516 images |
| Maianthemum trifolium (L.) Sloboda | 17 images |
| Malachra alceifolia Jacq. | 70 images |
| Malachra capitata (L.) L. | 14 images |
| Malachra fasciata Jacq. | 19 images |
| Malacothamnus jonesii (Munz) Kearney | 6 images |
| Malacothrix californica DC. | 36 images |
| Malaxis monophyllos (L.) Sw. | 46 images |
| Malaxis spicata Sw. | 2 images |
| Malaxis unifolia Michx. | 17 images |
| Malpighia coccigera L. | 148 images |
| Malpighia glabra L. | 691 images |
| Malus angustifolia (Aiton) Michx. | 25 images |
| Malus baccata (L.) Borkh. | 2216 images |
| Malus coronaria (L.) Mill. | 77 images |
| Malus floribunda Siebold ex Van Houtte | 55 images |
| Malus halliana Koehne | 41 images |
| Malus hupehensis (Pamp.) Rehder | 1500 images |
| Malus prunifolia (Willd.) Borkh. | 203 images |
| Malus pumila Mill. | 3411 images |
| Malus sargentii Rehder | 25 images |
| Malus spectabilis (Aiton) Borkh. | 611 images |
| Malus sylvestris (L.) Mill. | 4828 images |
| Malus toringo (Siebold) Siebold ex de Vriese | 10 images |
| Malva alcea L. | 11968 images |
| Malva moschata L. | 4893 images |
| Malva neglecta Wallr. | 5093 images |
| Malva nicaeensis All. | 148 images |
| Malva parviflora L. | 2543 images |
| Malva pusilla Sm. | 1278 images |
| Malva sylvestris L. | 25417 images |
| Malva verticillata L. | 196 images |
| Malvastrum americanum (L.) Torr. | 23 images |
| Malvastrum aurantiacum (Scheele) Walp. | 8 images |
| Malvastrum coromandelianum (L.) Garcke | 719 images |
| Malvastrum hispidum (Pursh) Hochr. | 6 images |
| Malvaviscus arboreus Dill. ex Cav. | 49 images |
| Malvella leprosa (Ortega) Krapov. | 114 images |
| Mammillaria barbata Engelm. | 68 images |
| Mammillaria grahamii Engelm. | 175 images |
| Mammillaria heyderi Muehlenpf. | 34 images |
| Mammillaria lasiacantha Engelm. | 238 images |
| Mammillaria pottsii Scheer ex Salm-Dyck | 24 images |
| Mammillaria prolifera (Mill.) Haw. | 1206 images |
| Mammillaria tetrancistra Engelm. | 115 images |
| Mammillaria thornberi Orcutt | 124 images |
| Mammillaria wrightii Engelm. | 153 images |
| Mandevilla brachysiphon (Torr.) Pichon | 2 images |
| Mandevilla macrosiphon (Torr.) Pichon | 4 images |
| Manfreda maculosa (Hook.) Rose | 25 images |
| Manfreda variegata (Jacobi) Rose | 6 images |
| Manfreda virginica (L.) Salisb. ex Rose | 52 images |
| Mangifera indica L. | 5176 images |
| Manihot esculenta Crantz | 1088 images |
| Manihot grahamii Hook. | 101 images |
| Manihot walkerae Croizat | 1 images |
| Marah fabaceus (Naud.) Naud. ex Greene | 1 images |
| Marah macrocarpus (Greene) Greene | 1 images |
| Marah watsonii (Cogn.) Greene | 3 images |
| Maranta arundinacea L. | 534 images |
| Marrubium vulgare L. | 4170 images |
| Marshallia caespitosa Nutt. ex DC. | 18 images |
| Marshallia graminifolia (Walter) Small | 4 images |
| Marsilea minuta L. | 21 images |
| Marsilea mutica Mett. | 2 images |
| Marsilea quadrifolia L. | 281 images |
| Matelea biflora (Raf.) Woodson | 45 images |
| Matelea carolinensis (Jacq.) Woodson | 49 images |
| Matelea decipiens (Alexander) Woodson | 8 images |
| Matelea edwardsensis Correll | 6 images |
| Matelea obliqua (Jacq.) Woodson | 5 images |
| Matelea parvifolia (Torr.) Woodson | 13 images |
| Matelea pubiflora (Decne.) Woodson | 3 images |
| Matricaria discoidea DC. | 3345 images |
| Matricaria occidentalis Greene | 13 images |
| Matricaria recutita L. | 168 images |
| Matteuccia struthiopteris (L.) Todaro | 2 images |
| Matthiola longipetala (Vent.) DC. | 487 images |
| Maurandella antirrhiniflora (Humb. & Bonpl. ex Willd.) Rothm. | 4 images |
| Maxillaria parviflora (Poepp. & Endl.) Garay | 1 images |
| Mayaca fluviatilis Aubl. | 36 images |
| Maytenus boaria Molina | 308 images |
| Mazus miquelii Makino | 23 images |
| Mecardonia acuminata (Walter) Small | 6 images |
| Mecardonia procumbens (Mill.) Small | 187 images |
| Meconella oregana Nutt. | 17 images |
| Medeola virginiana L. | 307 images |
| Medicago arabica (L.) Huds. | 3149 images |
| Medicago hybrida (Pourr.) Trautv. | 63 images |
| Medicago laciniata (L.) Mill. | 86 images |
| Medicago lupulina L. | 6406 images |
| Medicago minima (L.) L. | 947 images |
| Medicago monspeliaca (L.) Trautv. | 107 images |
| Medicago orbicularis (L.) Bartal. | 683 images |
| Medicago polymorpha L. | 2524 images |
| Medicago praecox DC. | 36 images |
| Medicago rigidula (L.) All. | 187 images |
| Medicago sativa L. | 15677 images |
| Medicago scutellata (L.) Mill. | 93 images |
| Medicago turbinata (L.) All. | 10 images |
| Meehania cordata (Nutt.) Britton | 8 images |
| Melaleuca linariifolia Sm. | 124 images |
| Melampodium cinereum DC. | 9 images |
| Melampodium divaricatum (Rich.) DC. | 104 images |
| Melampodium perfoliatum (Cav.) Kunth | 41 images |
| Melampodium sericeum Lag. | 4 images |
| Melampyrum lineare Desr. | 3 images |
| Melanthera nivea (L.) Small | 102 images |
| Melanthera parvifolia Small | 1 images |
| Melia azedarach L. | 9823 images |
| Melianthus major L. | 1087 images |
| Melica altissima L. | 40 images |
| Melica californica Scribn. | 11 images |
| Melica ciliata L. | 1344 images |
| Melica frutescens Scribn. | 11 images |
| Melica geyeri Munro ex Bol. | 4 images |
| Melica harfordii Bol. | 5 images |
| Melica imperfecta Trin. | 11 images |
| Melica montezumae Piper | 1 images |
| Melica mutica Walter | 18 images |
| Melica nitens (Scribn.) Nutt. ex Piper | 3 images |
| Melica porteri Scribn. | 1 images |
| Melica stricta Bol. | 11 images |
| Melica subulata (Griseb.) Scribn. | 2 images |
| Melica torreyana Scribn. | 9 images |
| Melicoccus bijugatus Jacq. | 240 images |
| Melilotus altissimus Thuill. | 438 images |
| Melilotus indicus (L.) All. | 2123 images |
| Melilotus officinalis (L.) Lam. | 3510 images |
| Melilotus sulcatus Desf. | 157 images |
| Melinis minutiflora P. Beauv. | 20 images |
| Melinis repens (Willd.) Zizka | 500 images |
| Melissa officinalis L. | 12702 images |
| Melocactus intortus (Mill.) Urb. | 152 images |
| Melochia corchorifolia L. | 83 images |
| Melochia nodiflora Sw. | 39 images |
| Melochia pyramidata L. | 140 images |
| Melochia tomentosa L. | 85 images |
| Melothria pendula L. | 487 images |
| Menispermum canadense L. | 212 images |
| Menodora heterophylla Moric. ex DC. | 10 images |
| Mentha aquatica L. | 7063 images |
| Mentha arvensis L. | 2870 images |
| Mentha pulegium L. | 2486 images |
| Mentha spicata L. | 8395 images |
| Mentha suaveolens Ehrh. | 10683 images |
| Mentzelia affinis Greene | 9 images |
| Mentzelia aspera L. | 23 images |
| Mentzelia crocea Kellogg | 21 images |
| Mentzelia incisa Urb. & Gilg | 26 images |
| Mentzelia leucophylla Brandegee | 1 images |
| Mentzelia lindleyi Torr. & A. Gray | 4 images |
| Mentzelia montana (Davidson) Davidson | 3 images |
| Mentzelia nitens Greene | 15 images |
| Mentzelia oligosperma Nutt. ex Sims | 1 images |
| Mentzelia pectinata Kellogg | 11 images |
| Mentzelia reflexa Coville | 16 images |
| Mentzelia veatchiana Kellogg | 18 images |
| Menyanthes trifoliata L. | 1678 images |
| Menziesia ferruginea Sm. | 12 images |
| Mercurialis annua L. | 6627 images |
| Merremia aegyptia (L.) Urb. | 162 images |
| Merremia cissoides (Lam.) Hallier f. | 13 images |
| Merremia dissecta (Jacq.) Hallier f. | 228 images |
| Merremia quinquefolia (L.) Hallier f. | 57 images |
| Merremia tuberosa (L.) Rendle | 372 images |
| Merremia umbellata (L.) Hallier f. | 210 images |
| Mertensia arizonica Greene | 3 images |
| Mertensia bella Piper | 4 images |
| Mertensia ciliata (James ex Torr.) G. Don | 119 images |
| Mertensia lanceolata (Pursh) DC. | 10 images |
| Mertensia longiflora Greene | 7 images |
| Mertensia maritima (L.) Gray | 341 images |
| Mertensia virginica (L.) Pers. ex Link | 824 images |
| Mesembryanthemum crystallinum L. | 1036 images |
| Mesembryanthemum nodiflorum L. | 1482 images |
| Metaplexis japonica (Thunb.) Makino | 19 images |
| Metasequoia glyptostroboides Hu & W.C. Cheng | 2 images |
| Metopium brownei (Jacq.) Urb. | 7 images |
| Metopium toxiferum (L.) Krug & Urb. | 22 images |
| Mibora minima (L.) Desv. | 191 images |
| Michelia figo (Lour.) Spreng. | 4 images |
| Microchloa kunthii Desv. | 79 images |
| Microstegium vimineum (Trin.) A. Camus | 2 images |
| Microsteris gracilis (Hook.) Greene | 24 images |
| Mikania micrantha Kunth | 249 images |
| Mikania scandens (L.) Willd. | 276 images |
| Milium effusum L. | 300 images |
| Milla biflora Cav. | 36 images |
| Mimetanthe pilosa (Benth.) Greene | 30 images |
| Mimosa aculeaticarpa Ortega | 33 images |
| Mimosa asperata L. | 2 images |
| Mimosa pudica L. | 2882 images |
| Mimosa quadrivalvis L. | 266 images |
| Mimulus alatus Aiton | 108 images |
| Mimulus bicolor Hartw. ex Benth. | 1 images |
| Mimulus cardinalis Douglas ex Benth. | 165 images |
| Mimulus floribundus Lindl. | 8 images |
| Mimulus glabratus Kunth | 20 images |
| Mimulus guttatus DC. | 740 images |
| Mimulus jungermannioides Suksd. | 2 images |
| Mimulus lewisii Pursh | 25 images |
| Mimulus ringens L. | 423 images |
| Mimulus tilingii Regel | 3 images |
| Minuartia drummondii (Shinners) McNeill | 3 images |
| Minuartia michauxii (Fenzl) Farw. | 4 images |
| Minuartia obtusiloba (Rydb.) House | 16 images |
| Minuartia patula (Michx.) Mattf. | 26 images |
| Mirabilis albida (Walter) Heimerl | 43 images |
| Mirabilis gigantea (Standl.) Shinners | 3 images |
| Mirabilis jalapa L. | 14715 images |
| Mirabilis laevis (Benth.) Curran | 171 images |
| Mirabilis linearis (Pursh) Heimerl | 13 images |
| Mirabilis longiflora L. | 246 images |
| Mirabilis melanotricha (Standl.) Spellenb. | 15 images |
| Mirabilis nyctaginea (Michx.) MacMill. | 179 images |
| Miscanthus sinensis Andersson | 3274 images |
| Misopates orontium (L.) Raf. | 1637 images |
| Mitchella repens L. | 868 images |
| Mitella caulescens Nutt. | 2 images |
| Mitella diphylla L. | 124 images |
| Mitella nuda L. | 14 images |
| Mitella ovalis Greene | 6 images |
| Mitella pentandra Hook. | 22 images |
| Mitella stauropetala Piper | 9 images |
| Mitella trifida Graham | 7 images |
| Mitracarpus hirtus (L.) DC. | 321 images |
| Moehringia lateriflora (L.) Fenzl | 42 images |
| Moehringia macrophylla (Hook.) Fenzl | 24 images |
| Moehringia trinervia (L.) Clairv. | 614 images |
| Mohavea breviflora Coville | 58 images |
| Molinia caerulea (L.) Moench | 1013 images |
| Mollugo cerviana (L.) Ser. | 10 images |
| Mollugo nudicaulis Lam. | 38 images |
| Mollugo verticillata L. | 314 images |
| Moluccella laevis L. | 262 images |
| Momordica balsamina L. | 238 images |
| Momordica charantia L. | 1798 images |
| Monanthochloe littoralis Engelm. | 4 images |
| Monarda bradburiana Beck | 7 images |
| Monarda citriodora Cerv. ex Lag. | 350 images |
| Monarda clinopodia L. | 76 images |
| Monarda didyma L. | 2941 images |
| Monarda fistulosa L. | 2083 images |
| Monarda media Willd. | 13 images |
| Monarda pectinata Nutt. | 8 images |
| Monarda punctata L. | 341 images |
| Monarda russeliana Nutt. ex Sims | 14 images |
| Monardella australis Abrams | 2 images |
| Monardella candicans Benth. | 1 images |
| Monardella douglasii Benth. | 3 images |
| Monardella follettii (Jeps.) Jokerst | 3 images |
| Monardella odoratissima Benth. | 212 images |
| Monardella purpurea Howell | 25 images |
| Monardella undulata Benth. | 8 images |
| Monardella villosa Benth. | 1 images |
| Monardella viridis Jeps. | 2 images |
| Moneses uniflora (L.) A. Gray | 2 images |
| Monolopia lanceolata Nutt. | 18 images |
| Monolopia major DC. | 4 images |
| Monolopia stricta Crum | 3 images |
| Monotropa hypopitys L. | 863 images |
| Monotropa uniflora L. | 1080 images |
| Monstera deliciosa Liebm. | 8892 images |
| Montia chamissoi (Ledeb. ex Spreng.) Greene | 4 images |
| Montia fontana L. | 262 images |
| Montia parvifolia (Moc. ex DC.) Greene | 18 images |
| Moraea collina Thunb. | 2 images |
| Moraea polystachya (Thunb.) Ker Gawl. | 11 images |
| Morella cerifera (L.) Small | 508 images |
| Morella pensylvanica (Mirb.) Kartesz | 23 images |
| Moricandia arvensis (L.) DC. | 1381 images |
| Morinda citrifolia L. | 1802 images |
| Morinda royoc L. | 18 images |
| Moringa oleifera Lam. | 1793 images |
| Morrenia odorata (Hook. & Arn.) Lindl. | 18 images |
| Morus alba L. | 11243 images |
| Morus nigra L. | 7261 images |
| Morus rubra L. | 2430 images |
| Mosla dianthera (Buch.-Ham. ex Roxb.) Maxim. | 1 images |
| Mucronea californica Benth. | 1 images |
| Mucuna pruriens (L.) DC. | 193 images |
| Mucuna sloanei Fawc. & Rendle | 42 images |
| Muehlenbeckia complexa Meisn. | 963 images |
| Muhlenbergia californica Vasey | 1 images |
| Muhlenbergia capillaris (Lam.) Trin. | 213 images |
| Muhlenbergia dumosa Scribn. ex Vasey | 5 images |
| Muhlenbergia emersleyi Vasey | 1 images |
| Muhlenbergia fragilis Swallen | 1 images |
| Muhlenbergia frondosa (Poir.) Fernald | 8 images |
| Muhlenbergia glomerata (Willd.) Trin. | 1 images |
| Muhlenbergia lindheimeri Hitchc. | 26 images |
| Muhlenbergia longiligula Hitchc. | 1 images |
| Muhlenbergia mexicana (L.) Trin. | 5 images |
| Muhlenbergia pauciflora Buckley | 7 images |
| Muhlenbergia pungens Thurb. | 1 images |
| Muhlenbergia reverchonii Vasey & Scribn. | 2 images |
| Muhlenbergia rigens (Benth.) Hitchc. | 23 images |
| Muhlenbergia torreyi (Kunth) Hitchc. ex Bush | 1 images |
| Muilla coronata Greene | 6 images |
| Muntingia calabura L. | 751 images |
| Murdannia nudiflora (L.) Brenan | 133 images |
| Musa acuminata Colla | 2670 images |
| Muscari armeniacum Leichtlin ex Baker | 2824 images |
| Muscari botryoides (L.) Mill. | 5200 images |
| Muscari comosum (L.) Mill. | 9121 images |
| Muscari neglectum Guss. ex Ten. | 10518 images |
| Myagrum perfoliatum L. | 142 images |
| Mycelis muralis (L.) Dumort. | 68 images |
| Myoporum laetum G. Forst. | 15 images |
| Myosotis arvensis (L.) Hill | 2485 images |
| Myosotis discolor Pers. | 719 images |
| Myosotis latifolia Poir. | 472 images |
| Myosotis laxa Lehm. | 281 images |
| Myosotis macrosperma Engelm. | 85 images |
| Myosotis scorpioides L. | 5475 images |
| Myosotis stricta Link ex Roem. & Schult. | 588 images |
| Myosotis sylvatica Ehrh. | 1 images |
| Myosotis verna Nutt. | 12 images |
| Myosoton aquaticum (L.) Moench | 1160 images |
| Myosurus minimus L. | 163 images |
| Myrcianthes fragrans (Sw.) McVaugh | 44 images |
| Myrica gale L. | 643 images |
| Myriophyllum alterniflorum DC. | 43 images |
| Myriophyllum aquaticum (Vell.) Verdc. | 556 images |
| Myriophyllum heterophyllum Michx. | 9 images |
| Myriophyllum quitense Kunth | 12 images |
| Myriophyllum sibiricum Kom. | 7 images |
| Myriophyllum spicatum L. | 281 images |
| Myriophyllum verticillatum L. | 66 images |
| Myrrhis odorata (L.) Scop. | 1383 images |
| Najas guadalupensis (Spreng.) Magnus | 14 images |
| Najas marina L. | 114 images |
| Najas minor All. | 22 images |
| Nandina domestica Thunb. | 6925 images |
| Napaea dioica L. | 25 images |
| Narcissus assoanus Dufour | 1251 images |
| Narcissus bulbocodium L. | 1093 images |
| Narcissus jonquilla L. | 1949 images |
| Narcissus papyraceus Ker Gawl. | 1245 images |
| Narcissus poeticus L. | 2719 images |
| Narcissus pseudonarcissus L. | 9345 images |
| Narcissus tazetta L. | 3063 images |
| Nardus stricta L. | 326 images |
| Narthecium americanum Ker Gawl. | 1 images |
| Narthecium californicum Baker | 13 images |
| Nassella neesiana (Trin. & Rupr.) Barkworth | 23 images |
| Nassella tenuissima (Trin.) Barkworth | 1088 images |
| Nasturtium officinale W.T. Aiton | 1 images |
| Navarretia capillaris (Kellogg) Kuntze | 4 images |
| Navarretia hamata Greene | 5 images |
| Navarretia heterodoxa (Greene) Greene | 2 images |
| Navarretia intertexta (Benth.) Hook. | 26 images |
| Navarretia leucocephala Benth. | 28 images |
| Navarretia nigelliformis Greene | 8 images |
| Navarretia prolifera Greene | 1 images |
| Navarretia rosulata Brand | 6 images |
| Navarretia setiloba Coville | 21 images |
| Navarretia squarrosa (Eschsch.) Hook. & Arn. | 4 images |
| Navarretia subuligera Greene | 2 images |
| Navarretia tagetina Greene | 3 images |
| Navarretia viscidula Benth. | 6 images |
| Nectandra coriacea (Sw.) Griseb. | 12 images |
| Nectouxia formosa Kunth | 2 images |
| Nelumbo lutea Willd. | 15 images |
| Nelumbo nucifera Gaertn. | 1881 images |
| Nemacaulis denudata Nutt. | 40 images |
| Nemacladus rigidus Curran | 9 images |
| Nemastylis floridana Small | 6 images |
| Nemastylis geminiflora Nutt. | 39 images |
| Nemophila aphylla (L.) Brummitt | 29 images |
| Nemophila maculata Benth. ex Lindl. | 374 images |
| Nemophila menziesii Hook. & Arn. | 357 images |
| Nemophila parviflora Douglas ex Benth. | 13 images |
| Nemophila pedunculata Douglas ex Benth. | 5 images |
| Nemophila pulchella Eastw. | 5 images |
| Nemophila spatulata Coville | 16 images |
| Neobeckia aquatica (Eaton) Greene | 1 images |
| Neogaerrhinum strictum (Hook. & Arn.) Rothm. | 3 images |
| Neostapfia colusana (Burtt Davy) Burtt Davy | 15 images |
| Nepeta cataria L. | 3516 images |
| Nepeta racemosa Lam. | 4650 images |
| Nephrolepis biserrata (Sw.) Schott | 1054 images |
| Nephrolepis cordifolia (L.) C. Presl | 1627 images |
| Nephrolepis exaltata (L.) Schott | 2879 images |
| Nephrolepis falcata (Cav.) C. Chr. | 2 images |
| Nephrophyllidium crista-galli (Menzies ex Hook.) Gilg | 12 images |
| Neptunia plena (L.) Benth. | 116 images |
| Neptunia pubescens Benth. | 23 images |
| Nerium oleander L. | 22595 images |
| Neslia paniculata (L.) Desv. | 77 images |
| Neurodium lanceolatum (L.) Fée | 4 images |
| Neyraudia reynaudiana (Kunth) Keng ex Hitchc. | 18 images |
| Nicandra physalodes (L.) Scop. | 42 images |
| Nicotiana acuminata (Graham) Hook. | 29 images |
| Nicotiana alata Link & Otto | 1108 images |
| Nicotiana glauca Graham | 3490 images |
| Nicotiana longiflora Cav. | 74 images |
| Nicotiana plumbaginifolia Viv. | 41 images |
| Nicotiana quadrivalvis Pursh | 56 images |
| Nicotiana repanda Willd. ex Lehm. | 1 images |
| Nicotiana rustica L. | 337 images |
| Nicotiana suaveolens Lehm. | 1 images |
| Nicotiana tabacum L. | 2724 images |
| Nigella damascena L. | 12512 images |
| Nigella sativa L. | 566 images |
| Nipponanthemum nipponicum (Franch. ex Maxim.) Kitam. | 223 images |
| Nolina arenicola Correll | 2 images |
| Nolina brittoniana Nash | 4 images |
| Nolina cismontana Dice | 3 images |
| Nolina georgiana Michx. | 1 images |
| Nonea vesicaria (L.) Rchb. | 158 images |
| Nothocalais cuspidata (Pursh) Greene | 13 images |
| Nothochelone nemorosa (Douglas ex Lindl.) Straw | 35 images |
| Notholaena aschenborniana Klotzsch | 6 images |
| Notholaena neglecta Maxon | 2 images |
| Nothoscordum bivalve (L.) Britton | 616 images |
| Nothoscordum borbonicum Kunth | 92 images |
| Nothoscordum gracile (Aiton) Stearn | 668 images |
| Nuphar lutea (L.) Sm. | 1542 images |
| Nuttallanthus floridanus (Chapm.) D.A. Sutton | 4 images |
| Nyctaginia capitata Choisy | 42 images |
| Nymphaea ampla (Salisb.) DC. | 153 images |
| Nymphaea elegans Hook. | 26 images |
| Nymphaea lotus L. | 181 images |
| Nymphaea mexicana Zucc. | 167 images |
| Nymphaea odorata Aiton | 401 images |
| Nymphaea tetragona Georgi | 52 images |
| Nymphoides cristata (Roxb.) Kuntze | 29 images |
| Nymphoides humboldtiana (Kunth) Kuntze | 1 images |
| Nymphoides indica (L.) Kuntze | 139 images |
| Nyssa aquatica L. | 48 images |
| Nyssa biflora Walter | 5 images |
| Nyssa sylvatica Marshall | 928 images |
| Obolaria virginica L. | 65 images |
| Ochna serrulata (Hochst.) Walp. | 67 images |
| Ochrosia elliptica Labill. | 62 images |
| Ocimum basilicum L. | 9131 images |
| Ocimum campechianum Mill. | 225 images |
| Oclemena acuminata (Michx.) Greene | 310 images |
| Odontites vernus (Bellardi) Dumort. | 1756 images |
| Odontonema callistachyum (Schltdl. & Cham.) Kuntze | 32 images |
| Odontonema cuspidatum (Nees) Kuntze | 868 images |
| Odontostomum hartwegii Torr. | 8 images |
| Oeceoclades maculata (Lindl.) Lindl. | 273 images |
| Oenanthe aquatica (L.) Poir. | 327 images |
| Oenanthe javanica (Blume) DC. | 52 images |
| Oenanthe pimpinelloides L. | 590 images |
| Oenothera albicaulis Pursh | 49 images |
| Oenothera argillicola Mack. | 9 images |
| Oenothera biennis L. | 14085 images |
| Oenothera cavernae Munz | 7 images |
| Oenothera drummondii Hook. | 190 images |
| Oenothera elata Kunth | 184 images |
| Oenothera fruticosa L. | 1492 images |
| Oenothera glazioviana Micheli | 7324 images |
| Oenothera humifusa Nutt. | 7 images |
| Oenothera kunthiana (Spach) Munz | 1 images |
| Oenothera laciniata Hill | 523 images |
| Oenothera linifolia Nutt. | 14 images |
| Oenothera macrocarpa Nutt. | 607 images |
| Oenothera mollissima L. | 5 images |
| Oenothera neomexicana (Small) Munz | 20 images |
| Oenothera pallida Lindl. | 28 images |
| Oenothera parviflora L. | 1139 images |
| Oenothera perennis L. | 5 images |
| Oenothera pilosella Raf. | 30 images |
| Oenothera rosea L'Hér. ex Aiton | 1249 images |
| Oenothera speciosa Nutt. | 2838 images |
| Oenothera stricta Ledeb. ex Link | 589 images |
| Oenothera tetraptera Cav. | 15 images |
| Oenothera triloba Nutt. | 81 images |
| Oenothera villosa Thunb. | 70 images |
| Oenothera xylocarpa Coville | 15 images |
| Oldenlandia corymbosa L. | 442 images |
| Olea europaea L. | 17850 images |
| Omalotheca supina (L.) DC. | 22 images |
| Omphalodes linifolia (L.) Moench | 119 images |
| Oncosiphon piluliferum (L. f.) Källersjö | 1 images |
| Onobrychis viciifolia Scop. | 7028 images |
| Onoclea sensibilis L. | 1531 images |
| Ononis alopecuroides L. | 17 images |
| Ononis arvensis L. | 125 images |
| Ononis repens L. | 13 images |
| Ononis spinosa L. | 4371 images |
| Onopordum acanthium L. | 4759 images |
| Onopordum illyricum L. | 1121 images |
| Onopordum tauricum Willd. | 457 images |
| Operculina pinnatifida (Kunth) O'Donell | 8 images |
| Ophioglossum californicum Prantl | 12 images |
| Ophioglossum crotalophoroides Walter | 4 images |
| Ophioglossum engelmannii Prantl | 12 images |
| Ophioglossum pendulum L. | 39 images |
| Ophioglossum petiolatum Hook. | 10 images |
| Ophioglossum pusillum Raf. | 4 images |
| Ophioglossum vulgatum L. | 325 images |
| Ophiopogon jaburan (Siebold) Lodd. | 241 images |
| Oplopanax horridus (Sm.) Miq. | 233 images |
| Opuntia aciculata Griffiths | 113 images |
| Opuntia atrispina Griffiths | 6 images |
| Opuntia basilaris Engelm. & J.M. Bigelow | 72 images |
| Opuntia cochenillifera (L.) Mill. | 309 images |
| Opuntia dillenii (Ker Gawl.) Haw. | 176 images |
| Opuntia ellisiana Griffiths | 6 images |
| Opuntia engelmannii Salm-Dyck ex Engelm. | 626 images |
| Opuntia ficus-indica (L.) Mill. | 6383 images |
| Opuntia fragilis (Nutt.) Haw. | 162 images |
| Opuntia humifusa (Raf.) Raf. | 1107 images |
| Opuntia leucotricha DC. | 420 images |
| Opuntia littoralis (Engelm.) Cockerell | 361 images |
| Opuntia macrocentra Engelm. | 204 images |
| Opuntia macrorhiza Engelm. | 66 images |
| Opuntia monacantha (Willd.) Haw. | 2212 images |
| Opuntia oricola Philbrick | 66 images |
| Opuntia phaeacantha Engelm. | 473 images |
| Opuntia polyacantha Haw. | 453 images |
| Opuntia rufida Engelm. | 44 images |
| Opuntia stricta (Haw.) Haw. | 1342 images |
| Opuntia strigil Engelm. | 4 images |
| Opuntia tomentosa Salm-Dyck | 583 images |
| Opuntia triacantha (Willd.) Sweet | 1 images |
| Orbexilum onobrychis (Nutt.) Rydb. | 1 images |
| Orcuttia californica Vasey | 2 images |
| Orcuttia tenuis Hitchc. | 2 images |
| Oreonana purpurascens Shevock & Constance | 4 images |
| Origanum majorana L. | 4580 images |
| Origanum vulgare L. | 19044 images |
| Ornithogalum nutans L. | 1197 images |
| Ornithogalum pyrenaicum L. | 1527 images |
| Ornithogalum thyrsoides Jacq. | 406 images |
| Ornithogalum umbellatum L. | 8264 images |
| Ornithopus compressus L. | 600 images |
| Ornithopus perpusillus L. | 527 images |
| Ornithopus pinnatus (Mill.) Druce | 116 images |
| Ornithopus sativus Brot. | 161 images |
| Ornithostaphylos oppositifolia (Parry) Small | 12 images |
| Orobanche californica Cham. & Schltdl. | 2 images |
| Orobanche fasciculata Nutt. | 135 images |
| Orobanche hederae Duby | 395 images |
| Orobanche ludoviciana Nutt. | 8 images |
| Orobanche minor Sm. | 2014 images |
| Orobanche parishii (Jeps.) Heckard | 43 images |
| Orobanche pinorum Geyer ex Hook. | 3 images |
| Orobanche ramosa L. | 40 images |
| Orobanche uniflora L. | 111 images |
| Orobanche valida Jeps. | 2 images |
| Orobanche vallicola (Jeps.) Heckard | 1 images |
| Orontium aquaticum L. | 124 images |
| Orthilia secunda (L.) House | 458 images |
| Orthocarpus bracteosus Benth. | 5 images |
| Orthocarpus cuspidatus Greene | 29 images |
| Orthocarpus luteus Nutt. | 4 images |
| Orthocarpus tenuifolius (Pursh) Benth. | 6 images |
| Oryza sativa L. | 450 images |
| Osmorhiza berteroi DC. | 4 images |
| Osmorhiza depauperata Phil. | 4 images |
| Osmorhiza longistylis (Torr.) DC. | 325 images |
| Osmunda cinnamomea L. | 121 images |
| Osmunda claytoniana L. | 390 images |
| Osmunda regalis L. | 2252 images |
| Osteospermum ecklonis (DC.) Norl. | 8674 images |
| Osteospermum fruticosum (L.) Norl. | 1983 images |
| Ostrya virginiana (Mill.) K. Koch | 1 images |
| Ottelia alismoides (L.) Pers. | 20 images |
| Oxalis corniculata L. | 8840 images |
| Oxalis debilis Kunth | 2811 images |
| Oxalis decaphylla Kunth | 8 images |
| Oxalis dillenii Jacq. | 2314 images |
| Oxalis frutescens L. | 88 images |
| Oxalis grandis Small | 29 images |
| Oxalis hirta L. | 1 images |
| Oxalis incarnata L. | 423 images |
| Oxalis latifolia Kunth | 2473 images |
| Oxalis montana Raf. | 56 images |
| Oxalis oregana Nutt. | 386 images |
| Oxalis pes-caprae L. | 7560 images |
| Oxalis priceae Small | 12 images |
| Oxalis purpurea L. | 306 images |
| Oxalis stricta L. | 1672 images |
| Oxalis suksdorfii Trel. | 18 images |
| Oxalis trilliifolia Hook. | 15 images |
| Oxalis violacea L. | 540 images |
| Oxydendrum arboreum (L.) DC. | 356 images |
| Oxypolis rigidior (L.) Raf. | 22 images |
| Oxyrhynchus volubilis Brandegee | 4 images |
| Oxyria digyna (L.) Hill | 394 images |
| Oxytenia acerosa Nutt. | 3 images |
| Oxytropis campestris (L.) DC. | 520 images |
| Oxytropis deflexa (Pall.) DC. | 14 images |
| Oxytropis lambertii Pursh | 48 images |
| Pachyrhizus erosus (L.) Urb. | 111 images |
| Pachysandra procumbens Michx. | 47 images |
| Pachysandra terminalis Siebold & Zucc. | 1552 images |
| Packera glabella (Poir.) C. Jeffrey | 2 images |
| Paederia foetida L. | 137 images |
| Paeonia brownii Douglas ex Hook. | 42 images |
| Paeonia californica Nutt. | 103 images |
| Paeonia lactiflora Pall. | 3087 images |
| Paeonia officinalis L. | 11097 images |
| Palafoxia reverchonii (Bush) Cory | 2 images |
| Palafoxia rosea (Bush) Cory | 13 images |
| Palafoxia sphacelata (Nutt. ex Torr.) Cory | 8 images |
| Palafoxia texana DC. | 13 images |
| Paliurus spina-christi Mill. | 2355 images |
| Panax quinquefolius L. | 88 images |
| Panax trifolius L. | 133 images |
| Pancratium maritimum L. | 4781 images |
| Panicum amarum Elliott | 9 images |
| Panicum anceps Michx. | 3 images |
| Panicum bulbosum Kunth | 1 images |
| Panicum capillare L. | 657 images |
| Panicum coloratum L. | 58 images |
| Panicum dichotomiflorum Michx. | 80 images |
| Panicum hirsutum Sw. | 5 images |
| Panicum miliaceum L. | 1198 images |
| Panicum obtusum Kunth | 1 images |
| Panicum repens L. | 78 images |
| Panicum trichoides Sw. | 28 images |
| Panicum urvilleanum Kunth | 1 images |
| Panicum virgatum L. | 926 images |
| Papaver alpinum L. | 1586 images |
| Papaver argemone L. | 1246 images |
| Papaver dubium L. | 3445 images |
| Papaver hybridum L. | 811 images |
| Papaver nudicaule L. | 369 images |
| Papaver orientale L. | 4185 images |
| Papaver radicatum Rottb. | 33 images |
| Papaver rhoeas L. | 11857 images |
| Papaver somniferum L. | 9924 images |
| Parentucellia latifolia (L.) Caruel | 519 images |
| Parentucellia viscosa (L.) Caruel | 869 images |
| Parietaria floridana Nutt. | 56 images |
| Parietaria judaica L. | 5051 images |
| Parietaria officinalis L. | 2785 images |
| Parietaria pensylvanica Muhl. ex Willd. | 169 images |
| Parkinsonia aculeata L. | 1970 images |
| Parkinsonia microphylla Torr. | 13 images |
| Parnassia asarifolia Vent. | 5 images |
| Parnassia cirrata Piper | 15 images |
| Parnassia glauca Raf. | 35 images |
| Parnassia grandifolia DC. | 8 images |
| Parnassia palustris L. | 4205 images |
| Paronychia ahartii Ertter | 1 images |
| Paronychia argyrocoma (Michx.) Nutt. | 18 images |
| Paronychia echinulata Chater | 17 images |
| Paronychia fastigiata (Raf.) Fernald | 7 images |
| Paronychia sessiliflora Nutt. | 3 images |
| Paronychia virginica Spreng. | 12 images |
| Parthenium hysterophorus L. | 1065 images |
| Parthenium incanum Kunth | 27 images |
| Parthenium integrifolium L. | 181 images |
| Parthenocissus quinquefolia (L.) Planch. | 11895 images |
| Parthenocissus tricuspidata (Siebold & Zucc.) Planch. | 3784 images |
| Parthenocissus vitacea (Knerr) Hitchc. | 3 images |
| Pascalia glauca Ortega | 37 images |
| Paspalidium geminatum (Forssk.) Stapf | 7 images |
| Paspalum bifidum (Bertol.) Nash | 7 images |
| Paspalum dilatatum Poir. | 1153 images |
| Paspalum distichum L. | 234 images |
| Paspalum fimbriatum Kunth | 22 images |
| Paspalum floridanum Michx. | 5 images |
| Paspalum malacophyllum Trin. | 4 images |
| Paspalum modestum Mez | 3 images |
| Paspalum paniculatum L. | 63 images |
| Paspalum plicatulum Michx. | 31 images |
| Paspalum quadrifarium Lam. | 6 images |
| Paspalum scrobiculatum L. | 21 images |
| Paspalum setaceum Michx. | 11 images |
| Paspalum urvillei Steud. | 90 images |
| Paspalum vaginatum Sw. | 34 images |
| Paspalum virgatum L. | 38 images |
| Passiflora affinis Engelm. | 5 images |
| Passiflora arida (Mast. & Rose) Killip | 2 images |
| Passiflora biflora Lam. | 71 images |
| Passiflora bryonioides Kunth | 4 images |
| Passiflora caerulea L. | 15140 images |
| Passiflora ciliata Aiton | 21 images |
| Passiflora coccinea Aubl. | 150 images |
| Passiflora edulis Sims | 3444 images |
| Passiflora filipes Benth. | 5 images |
| Passiflora foetida L. | 1334 images |
| Passiflora incarnata L. | 482 images |
| Passiflora lutea L. | 292 images |
| Passiflora manicata (Juss.) Pers. | 212 images |
| Passiflora mexicana Juss. | 2 images |
| Passiflora multiflora L. | 7 images |
| Passiflora pallida L. | 12 images |
| Passiflora sexflora Juss. | 3 images |
| Passiflora tarminiana Coppens & V.E. Barney | 3 images |
| Passiflora tenuiloba Engelm. | 7 images |
| Passiflora vitifolia Kunth | 448 images |
| Pastinaca sativa L. | 6171 images |
| Paulownia tomentosa (Thunb.) Siebold & Zucc. ex Steud. | 2 images |
| Pavonia hastata Cav. | 159 images |
| Pavonia lasiopetala Scheele | 36 images |
| Pavonia paludicola Nicolson ex Fryxell | 3 images |
| Pavonia spinifex (L.) Cav. | 51 images |
| Paxistima myrsinites (Pursh) Raf. | 84 images |
| Pectis angustifolia Torr. | 6 images |
| Pectis humifusa Sw. | 20 images |
| Pectis linifolia L. | 2 images |
| Pectis prostrata Cav. | 32 images |
| Pedicularis angustifolia Benth. | 5 images |
| Pedicularis bracteosa Benth. | 47 images |
| Pedicularis canadensis L. | 194 images |
| Pedicularis contorta Benth. | 23 images |
| Pedicularis crenulata Benth. | 6 images |
| Pedicularis cystopteridifolia Rydb. | 3 images |
| Pedicularis dudleyi Elmer | 6 images |
| Pedicularis groenlandica Retz. | 126 images |
| Pedicularis lanceolata Michx. | 22 images |
| Pedicularis racemosa Douglas ex Benth. | 42 images |
| Pedicularis sudetica Willd. | 6 images |
| Pedilanthus tithymaloides (L.) Poit. | 397 images |
| Pediocactus nigrispinus (Hochstätter) Hochstätter | 1 images |
| Pediocactus simpsonii (Engelm.) Britton & Rose | 21 images |
| Peganum harmala L. | 350 images |
| Pelargonium inodorum Willd. | 29 images |
| Pelargonium panduriforme Eckl. & Zeyh. | 44 images |
| Pelargonium zonale (L.) L'Hér. ex Aiton | 5195 images |
| Pellaea atropurpurea (L.) Link | 45 images |
| Pellaea bridgesii Hook. | 17 images |
| Pellaea ternifolia (Cav.) Link | 26 images |
| Pellaea wrightiana Hook. | 2 images |
| Peltandra sagittifolia (Michx.) Morong | 1 images |
| Peltandra virginica (L.) Schott | 141 images |
| Pemphis acidula J.R. Forst. & G. Forst. | 43 images |
| Peniocereus greggii (Engelm.) Britton & Rose | 33 images |
| Pennisetum alopecuroides (L.) Spreng. | 126 images |
| Pennisetum clandestinum Hochst. ex Chiov. | 43 images |
| Pennisetum latifolium Spreng. | 4 images |
| Pennisetum macrourum Trin. | 24 images |
| Pennisetum nervosum (Nees) Trin. | 1 images |
| Pennisetum pedicellatum Trin. | 67 images |
| Pennisetum petiolare (Hochst.) Chiov. | 1 images |
| Pennisetum polystachion (L.) Schult. | 57 images |
| Pennisetum purpureum Schumach. | 115 images |
| Pennisetum setaceum (Forssk.) Chiov. | 718 images |
| Penstemon acuminatus Douglas ex Lindl. | 13 images |
| Penstemon albertinus Greene | 19 images |
| Penstemon albidus Nutt. | 10 images |
| Penstemon ambiguus Torr. | 19 images |
| Penstemon anguineus Eastw. | 10 images |
| Penstemon angustifolius Nutt. ex Pursh | 5 images |
| Penstemon aridus Rydb. | 4 images |
| Penstemon arkansanus Pennell | 22 images |
| Penstemon australis Small | 2 images |
| Penstemon azureus Benth. | 8 images |
| Penstemon baccharifolius Hook. | 26 images |
| Penstemon barbatus (Cav.) Roth | 911 images |
| Penstemon buckleyi Pennell | 6 images |
| Penstemon calcareus Brandegee | 6 images |
| Penstemon calycosus Small | 28 images |
| Penstemon cardinalis Wooton & Standl. | 2 images |
| Penstemon cardwellii Howell | 9 images |
| Penstemon carnosus Pennell | 3 images |
| Penstemon centranthifolius (Benth.) Benth. | 85 images |
| Penstemon cobaea Nutt. | 156 images |
| Penstemon cyananthus Hook. | 35 images |
| Penstemon cyaneus Pennell | 1 images |
| Penstemon cyathophorus Rydb. | 2 images |
| Penstemon davidsonii Greene | 92 images |
| Penstemon digitalis Nutt. ex Sims | 1067 images |
| Penstemon euglaucus English | 3 images |
| Penstemon floridus Brandegee | 4 images |
| Penstemon fruticiformis Coville | 23 images |
| Penstemon fruticosus (Pursh) Greene | 49 images |
| Penstemon glaber Pursh | 20 images |
| Penstemon gracilis Nutt. | 19 images |
| Penstemon grandiflorus Nutt. | 23 images |
| Penstemon grinnellii Eastw. | 74 images |
| Penstemon heterophyllus Lindl. | 102 images |
| Penstemon hirsutus (L.) Willd. | 138 images |
| Penstemon incertus Brandegee | 5 images |
| Penstemon jamesii Benth. | 14 images |
| Penstemon laevigatus Aiton | 5 images |
| Penstemon laevis Pennell | 22 images |
| Penstemon laxiflorus Pennell | 15 images |
| Penstemon leiophyllus Pennell | 19 images |
| Penstemon lentus Pennell | 4 images |
| Penstemon montanus Greene | 8 images |
| Penstemon murrayanus Hook. | 7 images |
| Penstemon nitidus Douglas ex Benth. | 16 images |
| Penstemon osterhoutii Pennell | 4 images |
| Penstemon pallidus Small | 31 images |
| Penstemon petiolatus Brandegee | 3 images |
| Penstemon pinifolius Greene | 21 images |
| Penstemon platyphyllus Rydb. | 3 images |
| Penstemon procerus Douglas ex Graham | 63 images |
| Penstemon purpusii Brandegee | 4 images |
| Penstemon richardsonii Douglas ex Lindl. | 8 images |
| Penstemon roezlii Regel | 30 images |
| Penstemon rostriflorus Kellogg | 85 images |
| Penstemon rupicola (Piper) Howell | 28 images |
| Penstemon scariosus Pennell | 5 images |
| Penstemon secundiflorus Benth. | 58 images |
| Penstemon serrulatus Menzies ex Sm. | 39 images |
| Penstemon smallii A. Heller | 1 images |
| Penstemon stephensii Brandegee | 4 images |
| Penstemon strictus Benth. | 130 images |
| Penstemon subglaber Rydb. | 2 images |
| Penstemon tenuiflorus Pennell | 20 images |
| Penstemon tenuis Small | 26 images |
| Penstemon thurberi Torr. | 8 images |
| Penstemon uintahensis Pennell | 4 images |
| Penstemon unilateralis Rydb. | 1 images |
| Penstemon utahensis Eastw. | 48 images |
| Penstemon virens Pennell ex Rydb. | 23 images |
| Penstemon wilcoxii Rydb. | 1 images |
| Pentachaeta aurea Nutt. | 4 images |
| Pentachaeta bellidiflora Greene | 12 images |
| Pentas lanceolata (Forssk.) Deflers | 2800 images |
| Penthorum sedoides L. | 44 images |
| Pentodon pentandrus (Schumach. & Thonn.) Vatke | 4 images |
| Pentzia incana (Thunb.) Kuntze | 16 images |
| Peperomia alata Ruiz & Pav. | 1 images |
| Peperomia pellucida (L.) Kunth | 621 images |
| Peperomia rotundifolia (L.) Kunth | 806 images |
| Pereskia aculeata Mill. | 1089 images |
| Pereskia grandifolia Haw. | 547 images |
| Perideridia californica (Torr.) A. Nelson & J.F. Macbr. | 1 images |
| Perideridia gairdneri (Hook. & Arn.) Mathias | 2 images |
| Perilla frutescens (L.) Britton | 2404 images |
| Periploca graeca L. | 289 images |
| Perityle emoryi Torr. | 93 images |
| Perityle microglossa Benth. | 8 images |
| Persea americana Mill. | 7390 images |
| Persea borbonia (L.) Spreng. | 48 images |
| Persea palustris (Raf.) Sarg. | 3 images |
| Petasites frigidus (L.) Fr. | 229 images |
| Petasites japonicus (Siebold & Zucc.) Maxim. | 766 images |
| Petitia domingensis Jacq. | 2 images |
| Petiveria alliacea L. | 568 images |
| Petradoria pumila (Nutt.) Greene | 9 images |
| Petrea volubilis L. | 1617 images |
| Petrophytum caespitosum (Nutt.) Rydb. | 22 images |
| Petrophytum cinerascens (Piper) Rydb. | 2 images |
| Petrorhagia saxifraga (L.) Link | 1662 images |
| Petroselinum crispum (Mill.) Nyman ex A.W. Hill | 2 images |
| Petunia axillaris (Lam.) Britton, Sterns & Poggenb. | 74 images |
| Petunia integrifolia (Hook.) Schinz & Thell. | 105 images |
| Peucedanum palustre (L.) Moench | 94 images |
| Phacelia alba Rydb. | 1 images |
| Phacelia bipinnatifida Michx. | 115 images |
| Phacelia californica Cham. | 133 images |
| Phacelia calthifolia Brand | 68 images |
| Phacelia campanularia A. Gray | 246 images |
| Phacelia cicutaria Greene | 136 images |
| Phacelia ciliata Benth. | 20 images |
| Phacelia coerulea Greene | 12 images |
| Phacelia congdonii Greene | 9 images |
| Phacelia congesta Hook. | 55 images |
| Phacelia corymbosa Jeps. | 7 images |
| Phacelia cryptantha Greene | 32 images |
| Phacelia distans Benth. | 143 images |
| Phacelia douglasii (Benth.) Torr. | 10 images |
| Phacelia dubia (L.) Trel. | 5 images |
| Phacelia eisenii Brandegee | 6 images |
| Phacelia fimbriata Michx. | 12 images |
| Phacelia floribunda Greene | 6 images |
| Phacelia fremontii Torr. | 101 images |
| Phacelia hastata Douglas ex Lehm. | 88 images |
| Phacelia heterophylla Pursh | 55 images |
| Phacelia hirsuta Nutt. | 9 images |
| Phacelia imbricata Greene | 44 images |
| Phacelia incana Brand | 1 images |
| Phacelia insularis Munz | 2 images |
| Phacelia integrifolia Torr. | 14 images |
| Phacelia ivesiana Torr. | 4 images |
| Phacelia leptosepala Rydb. | 4 images |
| Phacelia linearis (Pursh) Holz. | 57 images |
| Phacelia monoensis Halse | 9 images |
| Phacelia mutabilis Greene | 42 images |
| Phacelia nashiana Jeps. | 32 images |
| Phacelia nemoralis Greene | 16 images |
| Phacelia neomexicana Thurb. ex Torr. | 5 images |
| Phacelia novenmillensis Munz | 6 images |
| Phacelia parryi Torr. | 74 images |
| Phacelia perityloides Coville | 21 images |
| Phacelia phacelioides (Benth.) Brand | 14 images |
| Phacelia purpusii Brandegee | 1 images |
| Phacelia purshii Buckley | 109 images |
| Phacelia ramosissima Douglas ex Lehm. | 85 images |
| Phacelia rupestris Greene | 3 images |
| Phacelia stellaris Brand | 5 images |
| Phacelia suaveolens Greene | 4 images |
| Phacelia tanacetifolia Benth. | 15382 images |
| Phacelia thermalis Greene | 1 images |
| Phacelia viscida (Benth. ex Lindl.) Torr. | 17 images |
| Phalaris angusta Nees ex Trin. | 6 images |
| Phalaris aquatica L. | 225 images |
| Phalaris arundinacea L. | 2758 images |
| Phalaris brachystachys Link | 9 images |
| Phalaris canariensis L. | 449 images |
| Phalaris coerulescens Desf. | 148 images |
| Phalaris lemmonii Vasey | 1 images |
| Phalaris minor Retz. | 166 images |
| Phalaris paradoxa L. | 73 images |
| Phanerophlebia umbonata Underw. | 26 images |
| Pharus lappulaceus Aubl. | 14 images |
| Phaseolus coccineus L. | 718 images |
| Phaseolus lunatus L. | 104 images |
| Phaseolus pedicellatus Benth. | 5 images |
| Phaseolus polystachios (L.) Britton, Sterns & Poggenb. | 3 images |
| Phaseolus vulgaris L. | 2656 images |
| Phedimus aizoon (L.) 't Hart | 958 images |
| Phedimus spurius (M. Bieb.) 't Hart | 7 images |
| Phegopteris connectilis (Michx.) Watt | 684 images |
| Phellodendron amurense Rupr. | 290 images |
| Phellodendron japonicum Maxim. | 11 images |
| Phellodendron lavallei Dode | 7 images |
| Phemeranthus calycinus (Engelm.) Kiger | 10 images |
| Phemeranthus parviflorus (Nutt.) Kiger | 7 images |
| Phemeranthus teretifolius (Pursh) Raf. | 8 images |
| Philadelphus coronarius L. | 18540 images |
| Philadelphus floridus Beadle | 2 images |
| Philadelphus hirsutus Nutt. | 19 images |
| Philadelphus incanus Koehne | 19 images |
| Philadelphus inodorus L. | 132 images |
| Philadelphus lewisii Pursh | 621 images |
| Philadelphus pubescens Loisel. | 530 images |
| Philodendron hederaceum (Jacq.) Schott | 2339 images |
| Philodendron undulatum Engl. | 14 images |
| Phlebodium aureum (L.) J. Sm. | 1130 images |
| Phlebodium pseudoaureum (Cav.) Lellinger | 91 images |
| Phleum alpinum L. | 298 images |
| Phleum arenarium L. | 114 images |
| Phleum paniculatum Huds. | 9 images |
| Phleum pratense L. | 2477 images |
| Phleum subulatum (Savi) Asch. & Graebn. | 5 images |
| Phlomis fruticosa L. | 6854 images |
| Phlomis tuberosa L. | 202 images |
| Phlox amoena Sims | 36 images |
| Phlox amplifolia Britton | 16 images |
| Phlox austromontana Coville | 53 images |
| Phlox buckleyi Wherry | 3 images |
| Phlox caespitosa Nutt. | 24 images |
| Phlox carolina L. | 39 images |
| Phlox cuspidata Scheele | 9 images |
| Phlox diffusa Benth. | 184 images |
| Phlox divaricata L. | 938 images |
| Phlox drummondii Hook. | 1392 images |
| Phlox glaberrima L. | 42 images |
| Phlox griseola Wherry | 4 images |
| Phlox hoodii Richardson | 69 images |
| Phlox kelseyi Britton | 3 images |
| Phlox longifolia Nutt. | 101 images |
| Phlox maculata L. | 1495 images |
| Phlox mesoleuca Greene | 23 images |
| Phlox nana Nutt. | 9 images |
| Phlox paniculata L. | 5907 images |
| Phlox pilosa L. | 169 images |
| Phlox pulvinata (Wherry) Cronquist | 13 images |
| Phlox roemeriana Scheele | 17 images |
| Phlox speciosa Pursh | 82 images |
| Phlox stolonifera Sims | 53 images |
| Phlox subulata L. | 4640 images |
| Phoenicaulis cheiranthoides Nutt. | 36 images |
| Phoenix canariensis hort. ex Chabaud | 1140 images |
| Phoenix dactylifera L. | 2875 images |
| Phoenix reclinata Jacq. | 1409 images |
| Pholistoma auritum (Lindl.) Lilja | 69 images |
| Pholistoma membranaceum (Benth.) Constance | 44 images |
| Phoradendron californicum Nutt. | 130 images |
| Phoradendron macrophyllum (Engelm.) Cockerell | 4 images |
| Photinia davidiana (Decne.) Cardot | 57 images |
| Photinia glabra (Thunb.) Maxim. | 1227 images |
| Photinia villosa (Thunb.) DC. | 60 images |
| Phragmites australis (Cav.) Trin. ex Steud. | 6354 images |
| Phryma leptostachya L. | 155 images |
| Phyla cuneifolia (Torr.) Greene | 1 images |
| Phyla lanceolata (Michx.) Greene | 121 images |
| Phyla nodiflora (L.) Greene | 1448 images |
| Phyllanthus acidus (L.) Skeels | 279 images |
| Phyllanthus amarus Schumach. & Thonn. | 456 images |
| Phyllanthus angustifolius (Sw.) Sw. | 30 images |
| Phyllanthus caroliniensis Walter | 18 images |
| Phyllanthus niruri L. | 203 images |
| Phyllanthus polygonoides Nutt. ex Spreng. | 29 images |
| Phyllanthus tenellus Roxb. | 733 images |
| Phyllanthus urinaria L. | 461 images |
| Phyllodoce caerulea (L.) Bab. | 163 images |
| Phyllodoce empetriformis (Sm.) D. Don | 82 images |
| Phyllodoce glanduliflora (Hook.) Coville | 19 images |
| Phyllospadix scouleri Hook. | 21 images |
| Phyllostachys aureosulcata McClure | 276 images |
| Phyllostachys bambusoides Siebold & Zucc. | 78 images |
| Phyllostachys dulcis McClure | 3 images |
| Phyllostachys nigra (Lodd. ex Lindl.) Munro | 1249 images |
| Phymatosorus scolopendria (Burm. f.) Pic. Serm. | 5 images |
| Physalis alkekengi L. | 3686 images |
| Physalis angulata L. | 951 images |
| Physalis angustifolia Nutt. | 14 images |
| Physalis arenicola Kearney | 1 images |
| Physalis crassifolia Benth. | 90 images |
| Physalis heterophylla Nees | 123 images |
| Physalis longifolia Nutt. | 219 images |
| Physalis minima L. | 33 images |
| Physalis mollis Nutt. | 8 images |
| Physalis peruviana L. | 3352 images |
| Physalis philadelphica Lam. | 653 images |
| Physalis pubescens L. | 161 images |
| Physalis pumila Nutt. | 10 images |
| Physalis turbinata Medik. | 2 images |
| Physalis virginiana Mill. | 2 images |
| Physalis viscosa L. | 134 images |
| Physalis walteri Nutt. | 12 images |
| Physaria alpestris Suksd. | 1 images |
| Physaria alpina Rollins | 4 images |
| Physaria chambersii Rollins | 25 images |
| Physocarpus capitatus (Pursh) Kuntze | 438 images |
| Physocarpus malvaceus (Greene) Kuntze | 5 images |
| Physocarpus opulifolius (L.) Maxim. | 4332 images |
| Physostegia angustifolia Fernald | 8 images |
| Physostegia correllii (Lundell) Shinners | 4 images |
| Physostegia digitalis Small | 4 images |
| Physostegia virginiana (L.) Benth. | 1978 images |
| Phytolacca americana L. | 18259 images |
| Phytolacca bogotensis Kunth | 731 images |
| Phytolacca icosandra L. | 102 images |
| Phytolacca octandra L. | 20 images |
| Picea abies (L.) Karst. | 1 images |
| Picea engelmannii Parry ex Engelm. | 185 images |
| Picea glauca (Moench) Voss | 1508 images |
| Picea mariana (Mill.) Britton, Sterns & Poggenb. | 63 images |
| Picea pungens Engelm. | 5248 images |
| Picea rubens Sarg. | 1863 images |
| Picea sitchensis (Bong.) Carrière | 966 images |
| Picramnia pentandra Sw. | 12 images |
| Picris echioides L. | 73 images |
| Picris hieracioides L. | 4263 images |
| Picris pauciflora Willd. | 1 images |
| Picrothamnus desertorum Nutt. | 1 images |
| Pilea fontana (Lunell) Rydb. | 1 images |
| Pilea herniarioides (Sw.) Lindl. | 1 images |
| Pilea microphylla (L.) Liebm. | 2265 images |
| Pilea pumila (L.) A. Gray | 1 images |
| Pimenta dioica (L.) Merr. | 184 images |
| Pimpinella anisum L. | 97 images |
| Pimpinella major (L.) Huds. | 2134 images |
| Pimpinella saxifraga L. | 1778 images |
| Pinaropappus roseus (Less.) Less. | 35 images |
| Pinguicula caerulea Walter | 16 images |
| Pinguicula lutea Walter | 26 images |
| Pinguicula planifolia Chapm. | 25 images |
| Pinguicula pumila Michx. | 13 images |
| Pinguicula vulgaris L. | 1164 images |
| Pinus albicaulis Engelm. | 117 images |
| Pinus aristata Engelm. | 230 images |
| Pinus arizonica Engelm. | 18 images |
| Pinus attenuata Lemmon | 61 images |
| Pinus balfouriana Balf. | 36 images |
| Pinus banksiana Lamb. | 375 images |
| Pinus cembroides Zucc. | 53 images |
| Pinus clausa (Chapm. ex Engelm.) Vasey ex Sarg. | 6 images |
| Pinus contorta Douglas ex Loudon | 536 images |
| Pinus echinata Mill. | 128 images |
| Pinus edulis Engelm. | 126 images |
| Pinus elliottii Engelm. | 122 images |
| Pinus engelmannii Carrière | 1 images |
| Pinus glabra Walter | 23 images |
| Pinus halepensis Mill. | 5960 images |
| Pinus jeffreyi Balf. | 41 images |
| Pinus lambertiana Douglas | 132 images |
| Pinus monophylla Torr. & Frém. | 30 images |
| Pinus mugo Turra | 4169 images |
| Pinus nigra Arnold | 2850 images |
| Pinus palustris Mill. | 139 images |
| Pinus pinaster Aiton | 3626 images |
| Pinus pinea L. | 3742 images |
| Pinus ponderosa Lawson & C. Lawson | 3 images |
| Pinus pungens Lamb. | 43 images |
| Pinus quadrifolia Parl. ex Sudw. | 20 images |
| Pinus resinosa Aiton | 1337 images |
| Pinus rigida Mill. | 392 images |
| Pinus serotina Michx. | 10 images |
| Pinus strobiformis Engelm. | 46 images |
| Pinus strobus L. | 4112 images |
| Pinus sylvestris L. | 9951 images |
| Pinus taeda L. | 359 images |
| Pinus thunbergii Parl. | 179 images |
| Pinus torreyana Parry ex Carrière | 36 images |
| Pinus virginiana Mill. | 110 images |
| Piper aduncum L. | 294 images |
| Piper auritum Kunth | 351 images |
| Piptatherum miliaceum (L.) Coss. | 73 images |
| Piriqueta cistoides (L.) Griseb. | 24 images |
| Piscidia piscipula (L.) Sarg. | 18 images |
| Pisonia aculeata L. | 95 images |
| Pistacia atlantica Desf. | 510 images |
| Pistacia chinensis Bunge | 229 images |
| Pistacia mexicana Kunth | 16 images |
| Pistia stratiotes L. | 949 images |
| Pisum sativum L. | 4321 images |
| Pithecellobium dulce (Roxb.) Benth. | 586 images |
| Pithecellobium unguis-cati (L.) Benth. | 235 images |
| Pittosporum pentandrum (Blanco) Merr. | 13 images |
| Pittosporum tenuifolium Gaertn. | 1669 images |
| Pittosporum tobira (Thunb.) W.T. Aiton | 4 images |
| Pittosporum undulatum Vent. | 1556 images |
| Pityopsis graminifolia (Michx.) Nutt. | 52 images |
| Pityrogramma calomelanos (L.) Link | 140 images |
| Plagiobothrys canescens Benth. | 12 images |
| Plantago afra L. | 363 images |
| Plantago arenaria Waldst. & Kit. | 197 images |
| Plantago aristata Michx. | 25 images |
| Plantago australis Lam. | 112 images |
| Plantago cordata Lam. | 13 images |
| Plantago coronopus L. | 2427 images |
| Plantago elongata Pursh | 15 images |
| Plantago eriopoda Torr. | 12 images |
| Plantago helleri Small | 7 images |
| Plantago heterophylla Nutt. | 1 images |
| Plantago lanceolata L. | 13429 images |
| Plantago major L. | 9863 images |
| Plantago maritima L. | 780 images |
| Plantago media L. | 4516 images |
| Plantago ovata Forssk. | 241 images |
| Plantago patagonica Jacq. | 42 images |
| Plantago pusilla Nutt. | 10 images |
| Plantago rhodosperma Decne. | 34 images |
| Plantago rugelii Decne. | 176 images |
| Plantago subnuda Pilg. | 23 images |
| Plantago virginica L. | 162 images |
| Plantago wrightiana Decne. | 6 images |
| Platanthera aquilonis Sheviak | 21 images |
| Platanthera blephariglottis (Willd.) Lindl. | 36 images |
| Platanthera chapmanii (Small) Luer | 3 images |
| Platanthera ciliaris (L.) Lindl. | 78 images |
| Platanthera clavellata (Michx.) Luer | 43 images |
| Platanthera cristata (Michx.) Lindl. | 5 images |
| Platanthera flava (L.) Lindl. | 17 images |
| Platanthera grandiflora (Bigelow) Lindl. | 11 images |
| Platanthera hyperborea (L.) Lindl. | 52 images |
| Platanthera integrilabia (Correll) Luer | 2 images |
| Platanthera leucophaea (Nutt.) Lindl. | 11 images |
| Platanthera nivea (Nutt.) Luer | 6 images |
| Platanthera obtusata (Banks ex Pursh) Lindl. | 12 images |
| Platanthera orbiculata (Pursh) Lindl. | 44 images |
| Platanthera psycodes (L.) Lindl. | 84 images |
| Platanthera stricta Lindl. | 22 images |
| Platanus occidentalis L. | 7789 images |
| Platanus racemosa Nutt. | 483 images |
| Platycladus orientalis (L.) Franco | 4695 images |
| Platycodon grandiflorus (Jacq.) A. DC. | 6 images |
| Platystemon californicus Benth. | 205 images |
| Platythelys querceticola (Lindl.) Garay | 4 images |
| Plectranthus parviflorus Willd. | 210 images |
| Plectritis ciliosa (Greene) Jeps. | 29 images |
| Plectritis congesta (Lindl.) DC. | 7 images |
| Pleiacanthus spinosus (Nutt.) Rydb. | 32 images |
| Pleioblastus simonii (Carrière) Nakai | 3 images |
| Pluchea camphorata (L.) DC. | 49 images |
| Pluchea foetida (L.) DC. | 12 images |
| Pluchea indica (L.) Less. | 68 images |
| Pluchea odorata (L.) Cass. | 260 images |
| Pluchea sagittalis (Lam.) Cabrera | 31 images |
| Plumbago auriculata Lam. | 10493 images |
| Plumbago scandens L. | 13 images |
| Plumeria obtusa L. | 1111 images |
| Poa alpina L. | 306 images |
| Poa annua L. | 2794 images |
| Poa arachnifera Torr. | 20 images |
| Poa arida Vasey | 2 images |
| Poa atropurpurea Scribn. | 8 images |
| Poa autumnalis Muhl. ex Elliott | 1 images |
| Poa bolanderi Vasey | 10 images |
| Poa bulbosa L. | 1044 images |
| Poa chaixii Vill. | 103 images |
| Poa chambersii Soreng | 2 images |
| Poa compressa L. | 110 images |
| Poa confinis Vasey | 2 images |
| Poa curtifolia Scribn. | 4 images |
| Poa cusickii Vasey | 7 images |
| Poa cuspidata Nutt. | 3 images |
| Poa douglasii Nees | 6 images |
| Poa fendleriana (Steud.) Vasey | 10 images |
| Poa glauca Vahl | 40 images |
| Poa infirma Kunth | 50 images |
| Poa laxa Haenke | 14 images |
| Poa laxiflora Buckley | 2 images |
| Poa leibergii Scribn. | 7 images |
| Poa leptocoma Trin. | 9 images |
| Poa macrantha Vasey | 1 images |
| Poa marcida Hitchc. | 1 images |
| Poa napensis Beetle | 1 images |
| Poa nemoralis L. | 376 images |
| Poa nervosa (Hook.) Vasey | 3 images |
| Poa palustris L. | 122 images |
| Poa pratensis L. | 2609 images |
| Poa rhizomata Hitchc. | 1 images |
| Poa stenantha Trin. | 1 images |
| Poa tracyi Vasey | 7 images |
| Poa trivialis L. | 1651 images |
| Podocarpus macrophyllus (Thunb.) Sweet | 926 images |
| Podophyllum peltatum L. | 1787 images |
| Podostemum ceratophyllum Michx. | 3 images |
| Podranea ricasoliana (Tanfani) Sprague | 3635 images |
| Pogogyne douglasii Benth. | 3 images |
| Pogogyne floribunda Jokerst | 7 images |
| Pogonia ophioglossoides (L.) Ker Gawl. | 106 images |
| Polanisia dodecandra (L.) DC. | 119 images |
| Polanisia erosa (Nutt.) Iltis | 3 images |
| Polanisia uniglandulosa (Cav.) DC. | 18 images |
| Polemonium caeruleum L. | 1286 images |
| Polemonium californicum Eastw. | 34 images |
| Polemonium elegans Greene | 20 images |
| Polemonium eximium Greene | 31 images |
| Polemonium foliosissimum A. Gray | 1 images |
| Polemonium micranthum Benth. | 4 images |
| Polemonium occidentale Greene | 103 images |
| Polemonium pulcherrimum Hook. | 84 images |
| Polemonium reptans L. | 388 images |
| Polemonium vanbruntiae Britton | 1 images |
| Polemonium viscosum Nutt. | 25 images |
| Polyalthia suberosa (Roxb.) Thwaites | 18 images |
| Polycarpaea corymbosa (L.) Lam. | 6 images |
| Polycarpon depressum Nutt. | 5 images |
| Polycarpon tetraphyllum (L.) L. | 1150 images |
| Polygala alba Nutt. | 26 images |
| Polygala californica Nutt. | 56 images |
| Polygala cornuta Kellogg | 31 images |
| Polygala cruciata L. | 9 images |
| Polygala cymosa Walter | 2 images |
| Polygala glochidiata Kunth | 5 images |
| Polygala grandiflora Walter | 1 images |
| Polygala longicaulis Kunth | 50 images |
| Polygala lutea L. | 94 images |
| Polygala mariana Mill. | 3 images |
| Polygala myrtifolia L. | 5515 images |
| Polygala paniculata L. | 157 images |
| Polygala paucifolia Willd. | 162 images |
| Polygala polygama Walter | 27 images |
| Polygala sanguinea L. | 60 images |
| Polygala senega L. | 26 images |
| Polygala setacea Michx. | 1 images |
| Polygala verticillata L. | 5 images |
| Polygala vulgaris L. | 3924 images |
| Polygonatum biflorum (Walter) Elliott | 646 images |
| Polygonatum pubescens (Willd.) Pursh | 143 images |
| Polygonella gracilis Meisn. | 3 images |
| Polygonella myriophylla (Small) Horton | 1 images |
| Polygonum arenarium Waldst. & Kit. | 9 images |
| Polygonum aviculare L. | 4981 images |
| Polygonum bellardii All. | 27 images |
| Polygonum bistorta L. | 18 images |
| Polygonum cilinode Michx. | 3 images |
| Polygonum convolvulus L. | 7 images |
| Polygonum douglasii Greene | 5 images |
| Polygonum glaucum Nutt. | 19 images |
| Polygonum hydropiperoides Michx. | 13 images |
| Polygonum lapathifolium L. | 199 images |
| Polygonum meisnerianum Cham. & Schltdl. | 2 images |
| Polygonum orientale L. | 2 images |
| Polygonum parryi Greene | 1 images |
| Polygonum pensylvanicum L. | 32 images |
| Polygonum persicaria L. | 1080 images |
| Polygonum punctatum Elliott | 9 images |
| Polygonum raii Bab. | 83 images |
| Polygonum tenue Michx. | 3 images |
| Polygonum virginianum L. | 101 images |
| Polygonum viviparum L. | 1 images |
| Polymnia canadensis L. | 133 images |
| Polypodium amorphum Suksd. | 9 images |
| Polypodium californicum Kaulf. | 77 images |
| Polypodium glycyrrhiza D.C. Eaton | 18 images |
| Polypodium hesperium Maxon | 10 images |
| Polypodium scouleri Hook. & Grev. | 26 images |
| Polypodium triseriale Sw. | 8 images |
| Polypodium virginianum L. | 274 images |
| Polypogon australis Brongn. | 8 images |
| Polypogon maritimus Willd. | 35 images |
| Polypogon monspeliensis (L.) Desf. | 772 images |
| Polypogon viridis (Gouan) Breistr. | 193 images |
| Polypremum procumbens L. | 81 images |
| Polystichum acrostichoides (Michx.) Schott | 577 images |
| Polystichum andersonii Hopkins | 2 images |
| Polystichum dudleyi Maxon | 5 images |
| Polystichum lemmonii Underw. | 20 images |
| Polystichum lonchitis (L.) Roth | 596 images |
| Polytaenia nuttallii DC. | 16 images |
| Poncirus trifoliata (L.) Raf. | 1775 images |
| Pontederia cordata L. | 1439 images |
| Populus alba L. | 11603 images |
| Populus balsamifera L. | 1439 images |
| Populus deltoides W. Bartram ex Marshall | 3 images |
| Populus grandidentata Michx. | 292 images |
| Populus heterophylla L. | 23 images |
| Populus nigra L. | 13644 images |
| Populus tremula L. | 6580 images |
| Populus tremuloides Michx. | 1314 images |
| Poranopsis paniculata (Roxb.) Roberty | 14 images |
| Porophyllum gracile Benth. | 21 images |
| Porophyllum ruderale (Jacq.) Cass. | 293 images |
| Portulaca amilis Speg. | 9 images |
| Portulaca grandiflora Hook. | 7691 images |
| Portulaca halimoides L. | 31 images |
| Portulaca oleracea L. | 12218 images |
| Portulaca pilosa L. | 669 images |
| Portulaca rubricaulis Kunth | 16 images |
| Portulaca suffrutescens Engelm. | 18 images |
| Portulaca umbraticola Kunth | 1462 images |
| Posidonia oceanica (L.) Delile | 239 images |
| Potamogeton amplifolius Tuck. | 7 images |
| Potamogeton crispus L. | 151 images |
| Potamogeton diversifolius Raf. | 1 images |
| Potamogeton epihydrus Raf. | 4 images |
| Potamogeton foliosus Raf. | 5 images |
| Potamogeton friesii Rupr. | 8 images |
| Potamogeton gramineus L. | 39 images |
| Potamogeton natans L. | 534 images |
| Potamogeton nodosus Poir. | 299 images |
| Potamogeton perfoliatus L. | 149 images |
| Potamogeton praelongus Wulfen | 22 images |
| Potamogeton pusillus L. | 41 images |
| Potentilla alba L. | 204 images |
| Potentilla argentea L. | 2311 images |
| Potentilla arguta Pursh | 3 images |
| Potentilla biennis Greene | 2 images |
| Potentilla canadensis L. | 80 images |
| Potentilla collina Wibel | 2 images |
| Potentilla concinna Richardson | 8 images |
| Potentilla drummondii Lehm. | 17 images |
| Potentilla erecta (L.) Raeusch. | 4367 images |
| Potentilla gracilis Douglas ex Hook. | 176 images |
| Potentilla hippiana Lehm. | 9 images |
| Potentilla inclinata Vill. | 44 images |
| Potentilla intermedia L. | 93 images |
| Potentilla millefolia Rydb. | 19 images |
| Potentilla morefieldii Ertter | 8 images |
| Potentilla neumanniana Rchb. | 94 images |
| Potentilla nivea L. | 26 images |
| Potentilla norvegica L. | 653 images |
| Potentilla pensylvanica L. | 16 images |
| Potentilla plattensis Nutt. | 1 images |
| Potentilla pseudosericea Rydb. | 9 images |
| Potentilla recta L. | 3147 images |
| Potentilla reptans L. | 10076 images |
| Potentilla simplex Michx. | 435 images |
| Pouteria campechiana (Kunth) Baehni | 188 images |
| Pouzolzia zeylanica (L.) Benn. | 6 images |
| Premna odorata Blanco | 4 images |
| Prenanthes alba L. | 57 images |
| Primula angustifolia Torr. | 12 images |
| Primula japonica A. Gray | 1 images |
| Primula laurentiana Fernald | 32 images |
| Primula mistassinica Michx. | 4 images |
| Primula rusbyi Greene | 4 images |
| Primula specuicola Rydb. | 3 images |
| Primula veris L. | 13168 images |
| Priva lappulacea (L.) Pers. | 304 images |
| Proboscidea althaeifolia (Benth.) Decne. | 3 images |
| Proboscidea louisianica (Mill.) Thell. | 217 images |
| Prosartes hookeri Torr. | 121 images |
| Prosartes smithii (Hook.) Utech, Shinwari & Kawano | 57 images |
| Prosartes trachycarpa S. Watson | 1 images |
| Proserpinaca palustris L. | 4 images |
| Proserpinaca pectinata Lam. | 2 images |
| Prosopis glandulosa Torr. | 439 images |
| Prosopis pubescens Benth. | 40 images |
| Prosopis reptans Benth. | 3 images |
| Prosopis strombulifera (Lam.) Benth. | 22 images |
| Prosopis velutina Wooton | 31 images |
| Prunella laciniata (L.) L. | 1563 images |
| Prunella vulgaris L. | 18534 images |
| Prunus alleghaniensis Porter | 1 images |
| Prunus americana Marshall | 45 images |
| Prunus angustifolia Marshall | 3 images |
| Prunus armeniaca L. | 5417 images |
| Prunus avium (L.) L. | 19651 images |
| Prunus cerasifera Ehrh. | 21269 images |
| Prunus cerasus L. | 9749 images |
| Prunus domestica L. | 16604 images |
| Prunus fruticosa Pall. | 158 images |
| Prunus glandulosa Thunb. | 268 images |
| Prunus laurocerasus L. | 19791 images |
| Prunus lusitanica L. | 4072 images |
| Prunus mahaleb L. | 6477 images |
| Prunus maritima Marshall | 32 images |
| Prunus myrtifolia (L.) Urb. | 17 images |
| Prunus nigra Aiton | 2 images |
| Prunus padus L. | 13035 images |
| Prunus pensylvanica L. f. | 4 images |
| Prunus persica (L.) Batsch | 9944 images |
| Prunus pumila L. | 19 images |
| Prunus rivularis Scheele | 22 images |
| Prunus serotina Ehrh. | 7951 images |
| Prunus serrulata Lindl. | 12691 images |
| Prunus spinosa L. | 30838 images |
| Prunus subcordata Benth. | 12 images |
| Prunus subhirtella Miq. | 17 images |
| Prunus tomentosa Thunb. | 339 images |
| Prunus triloba Lindl. | 1208 images |
| Prunus umbellata Elliott | 41 images |
| Prunus virginiana L. | 2450 images |
| Pseudabutilon umbellatum (L.) Fryxell | 2 images |
| Pseuderanthemum carruthersii (Seem.) Guillaumin | 1360 images |
| Pseudobahia peirsonii Munz | 18 images |
| Pseudocymopterus montanus (A. Gray) J.M. Coult. & Rose | 1 images |
| Pseudofumaria lutea (L.) Borkh. | 1801 images |
| Pseudognaphalium biolettii Anderb. | 4 images |
| Pseudognaphalium californicum (DC.) Anderb. | 192 images |
| Pseudognaphalium ramosissimum (Nutt.) Anderb. | 18 images |
| Pseudognaphalium sandwicensium (Gaudich.) Anderb. | 53 images |
| Pseudognaphalium stramineum (Kunth) Anderb. | 101 images |
| Pseudosasa japonica (Siebold & Zucc. ex Steud.) Makino ex Nakai | 86 images |
| Pseudotsuga macrocarpa (Vasey) Mayr | 25 images |
| Pseudotsuga menziesii (Mirb.) Franco | 4238 images |
| Psidium cattleianum Sabine | 10 images |
| Psidium guajava L. | 3424 images |
| Psilocarphus brevissimus Nutt. | 36 images |
| Psilocarphus oregonus Nutt. | 3 images |
| Psilocarphus tenellus Nutt. | 30 images |
| Psilostrophe tagetina (Nutt.) Greene | 6 images |
| Psorothamnus schottii (Torr.) Barneby | 67 images |
| Psychotria nervosa Sw. | 210 images |
| Psychotria punctata Vatke | 94 images |
| Ptelea crenulata Greene | 32 images |
| Ptelea trifoliata L. | 417 images |
| Pteridium aquilinum (L.) Kuhn | 6372 images |
| Pteridium caudatum (L.) Maxon | 45 images |
| Pteris cretica L. | 870 images |
| Pteris grandifolia L. | 8 images |
| Pteris longifolia L. | 26 images |
| Pteris multifida Poir. | 13 images |
| Pteris plumula Desv. | 1 images |
| Pteris tremula R. Br. | 155 images |
| Pteris tripartita Sw. | 46 images |
| Pteris vittata L. | 500 images |
| Pterocarya stenoptera C. DC. | 14 images |
| Pterocaulon virgatum (L.) DC. | 8 images |
| Pterospora andromedea Nutt. | 246 images |
| Ptilimnium nodosum (Rose) Mathias | 5 images |
| Ptilimnium nuttallii (DC.) Britton | 3 images |
| Puccinellia distans (Jacq.) Parl. | 89 images |
| Puccinellia maritima (Huds.) Parl. | 57 images |
| Puccinellia parishii Hitchc. | 2 images |
| Pueraria montana (Lour.) Merr. | 370 images |
| Pulicaria arabica (L.) Cass. | 156 images |
| Pulicaria dysenterica (L.) Bernh. | 4768 images |
| Pulicaria paludosa Link | 89 images |
| Pulmonaria saccharata Mill. | 2211 images |
| Pulsatilla patens (L.) Mill. | 19 images |
| Punica granatum L. | 13078 images |
| Purshia glandulosa Curran | 7 images |
| Purshia tridentata (Pursh) DC. | 166 images |
| Pycnanthemum flexuosum (Walter) Britton, Sterns & Poggenb. | 1 images |
| Pycnanthemum incanum (L.) Michx. | 110 images |
| Pycnanthemum muticum (Michx.) Pers. | 120 images |
| Pycnanthemum tenuifolium Schrad. | 242 images |
| Pycnanthemum verticillatum (Michx.) Pers. | 73 images |
| Pyracantha coccinea M. Roem. | 3 images |
| Pyracantha koidzumii (Hayata) Rehder | 641 images |
| Pyrola asarifolia Michx. | 105 images |
| Pyrola chlorantha Sw. | 308 images |
| Pyrola elliptica Nutt. | 138 images |
| Pyrola minor L. | 587 images |
| Pyrola picta Sm. | 122 images |
| Pyrostegia venusta (Ker Gawl.) Miers | 1664 images |
| Pyrrhopappus carolinianus (Walter) DC. | 251 images |
| Pyrrhopappus grandiflorus (Nutt.) Nutt. | 2 images |
| Pyrrocoma carthamoides Hook. | 4 images |
| Pyrrocoma lanceolata (Hook.) Greene | 1 images |
| Pyrrocoma uniflora (Hook.) Greene | 13 images |
| Pyrus calleryana Decne. | 4367 images |
| Pyrus communis L. | 10122 images |
| Pyxidanthera barbulata Michx. | 4 images |
| Quercus agrifolia Née | 188 images |
| Quercus alba L. | 666 images |
| Quercus arizonica Sarg. | 8 images |
| Quercus arkansana Sarg. | 15 images |
| Quercus austrina Small | 10 images |
| Quercus berberidifolia Liebm. | 56 images |
| Quercus bicolor Willd. | 560 images |
| Quercus boyntonii Beadle | 2 images |
| Quercus buckleyi Nixon & Dorr | 7 images |
| Quercus cerris L. | 3770 images |
| Quercus chrysolepis Liebm. | 147 images |
| Quercus coccinea Münchh. | 153 images |
| Quercus douglasii Hook. & Arn. | 16 images |
| Quercus dumosa Nutt. | 26 images |
| Quercus durata Jeps. | 50 images |
| Quercus emoryi Torr. | 19 images |
| Quercus engelmannii Greene | 46 images |
| Quercus falcata Michx. | 61 images |
| Quercus fusiformis Small | 179 images |
| Quercus gambelii Nutt. | 150 images |
| Quercus garryana Douglas ex Hook. | 164 images |
| Quercus geminata Small | 20 images |
| Quercus gravesii Sudw. | 17 images |
| Quercus grisea Liebm. | 15 images |
| Quercus havardii Rydb. | 7 images |
| Quercus ilex L. | 14801 images |
| Quercus ilicifolia Wangenh. | 39 images |
| Quercus imbricaria Michx. | 215 images |
| Quercus laevis Walter | 7 images |
| Quercus laurifolia Michx. | 52 images |
| Quercus lobata Née | 25 images |
| Quercus lyrata Walter | 9 images |
| Quercus macrocarpa Michx. | 1231 images |
| Quercus michauxii Nutt. | 143 images |
| Quercus montana Willd. | 4 images |
| Quercus muehlenbergii Engelm. | 48 images |
| Quercus myrtifolia Willd. | 2 images |
| Quercus nigra L. | 868 images |
| Quercus oblongifolia Torr. | 10 images |
| Quercus palustris Münchh. | 3662 images |
| Quercus parvula Greene | 5 images |
| Quercus phellos L. | 716 images |
| Quercus polymorpha Schltdl. & Cham. | 43 images |
| Quercus pumila Walter | 1 images |
| Quercus pungens Liebm. | 3 images |
| Quercus robur L. | 16600 images |
| Quercus rubra L. | 11113 images |
| Quercus rugosa Née | 26 images |
| Quercus shumardii Buckley | 61 images |
| Quercus similis Ashe | 1 images |
| Quercus sinuata Walter | 6 images |
| Quercus stellata Wangenh. | 106 images |
| Quercus suber L. | 4584 images |
| Quercus texana Buckley | 35 images |
| Quercus tomentella Engelm. | 49 images |
| Quercus toumeyi Sarg. | 7 images |
| Quercus turbinella Greene | 75 images |
| Quercus vaseyana Buckley | 8 images |
| Quercus velutina Lam. | 1048 images |
| Quercus virginiana Mill. | 440 images |
| Quincula lobata (Torr.) Raf. | 50 images |
| Quisqualis indica L. | 466 images |
| Radermachera sinica (Hance) Hemsl. | 626 images |
| Radiola linoides Roth | 131 images |
| Rafinesquia californica Nutt. | 31 images |
| Raillardella pringlei Greene | 10 images |
| Rainiera stricta (Greene) Greene | 21 images |
| Randia aculeata L. | 60 images |
| Ranunculus abortivus L. | 456 images |
| Ranunculus acris L. | 11394 images |
| Ranunculus alismifolius Geyer ex Benth. | 55 images |
| Ranunculus aquatilis L. | 546 images |
| Ranunculus arvensis L. | 417 images |
| Ranunculus bonariensis Poir. | 2 images |
| Ranunculus bulbosus L. | 4772 images |
| Ranunculus californicus Benth. | 181 images |
| Ranunculus canus Benth. | 13 images |
| Ranunculus cortusifolius Willd. | 295 images |
| Ranunculus cymbalaria Pursh | 10 images |
| Ranunculus eschscholtzii Schltdl. | 24 images |
| Ranunculus fascicularis Muhl. ex Bigelow | 63 images |
| Ranunculus ficaria L. | 4977 images |
| Ranunculus flabellaris Raf. | 10 images |
| Ranunculus flammula L. | 1737 images |
| Ranunculus glaberrimus Hook. | 68 images |
| Ranunculus gmelinii DC. | 4 images |
| Ranunculus gormanii Greene | 3 images |
| Ranunculus hederaceus L. | 156 images |
| Ranunculus hispidus Michx. | 194 images |
| Ranunculus hyperboreus Rottb. | 14 images |
| Ranunculus inamoenus Greene | 3 images |
| Ranunculus macounii Britton | 11 images |
| Ranunculus macranthus Scheele | 5 images |
| Ranunculus micranthus Nutt. | 14 images |
| Ranunculus muricatus L. | 1013 images |
| Ranunculus occidentalis Nutt. | 64 images |
| Ranunculus orthorhynchus Hook. | 43 images |
| Ranunculus parviflorus L. | 608 images |
| Ranunculus pensylvanicus L. f. | 2 images |
| Ranunculus populago Greene | 1 images |
| Ranunculus pusillus Poir. | 5 images |
| Ranunculus pygmaeus Wahlenb. | 16 images |
| Ranunculus recurvatus Poir. | 203 images |
| Ranunculus repens L. | 14612 images |
| Ranunculus sardous Crantz | 789 images |
| Ranunculus sceleratus L. | 1368 images |
| Ranunculus trichophyllus Chaix | 460 images |
| Ranunculus trilobus Desf. | 63 images |
| Raphanus raphanistrum L. | 13180 images |
| Raphanus sativus L. | 35 images |
| Rapistrum rugosum (L.) All. | 2864 images |
| Ratibida columnifera (Nutt.) Wooton & Standl. | 412 images |
| Ratibida pinnata (Vent.) Barnhart | 315 images |
| Rauvolfia tetraphylla L. | 191 images |
| Rauvolfia viridis Roem. & Schult. | 56 images |
| Reichardia picroides (L.) Roth | 1643 images |
| Remirea maritima Aubl. | 7 images |
| Reseda alba L. | 1902 images |
| Reseda lutea L. | 5677 images |
| Reseda luteola L. | 2926 images |
| Reseda odorata L. | 74 images |
| Reseda phyteuma L. | 1673 images |
| Retama monosperma (L.) Boiss. | 508 images |
| Reynosia septentrionalis Urb. | 2 images |
| Rhagadiolus stellatus (L.) Gaertn. | 168 images |
| Rhamnus cathartica L. | 5109 images |
| Rhamnus crocea Nutt. | 148 images |
| Rhamnus davurica Pall. | 1 images |
| Rhamnus japonica Maxim. | 1 images |
| Rhamnus utilis Decne. | 7 images |
| Rheum rhabarbarum L. | 571 images |
| Rhexia alifanus Walter | 14 images |
| Rhexia cubensis Griseb. | 4 images |
| Rhexia mariana L. | 194 images |
| Rhexia virginica L. | 109 images |
| Rhinanthus major L. | 767 images |
| Rhinanthus minor L. | 2609 images |
| Rhizophora mangle L. | 495 images |
| Rhodiola integrifolia Raf. | 76 images |
| Rhodiola rosea L. | 743 images |
| Rhododendron alabamense Rehder | 198 images |
| Rhododendron albiflorum Hook. | 34 images |
| Rhododendron arborescens (Pursh) Torr. | 84 images |
| Rhododendron atlanticum (Ashe) Rehder | 26 images |
| Rhododendron austrinum (Small) Rehder | 14 images |
| Rhododendron calendulaceum (Michx.) Torr. | 2793 images |
| Rhododendron canadense (L.) Torr. | 107 images |
| Rhododendron canescens (Michx.) Sweet | 178 images |
| Rhododendron carolinianum Rehder | 11 images |
| Rhododendron catawbiense Michx. | 1942 images |
| Rhododendron chapmanii (Alph. Wood) A. Gray | 7 images |
| Rhododendron lapponicum (L.) Wahlenb. | 263 images |
| Rhododendron maximum L. | 6111 images |
| Rhododendron minus Michx. | 42 images |
| Rhododendron periclymenoides (Michx.) Shinners | 247 images |
| Rhododendron prinophyllum (Small) Millais | 231 images |
| Rhododendron prunifolium (Small) Millais | 12 images |
| Rhododendron vaseyi A. Gray | 1 images |
| Rhododendron viscosum (L.) Torr. | 131 images |
| Rhododon ciliatus (Benth.) Epling | 4 images |
| Rhodomyrtus tomentosa (Aiton) Hassk. | 71 images |
| Rhodotypos scandens (Thunb.) Makino | 788 images |
| Rhus aromatica Aiton | 615 images |
| Rhus copallinum L. | 886 images |
| Rhus glabra L. | 1709 images |
| Rhus integrifolia (Nutt.) W.H. Brewer & S. Watson | 9 images |
| Rhus trilobata Nutt. | 10 images |
| Rhus typhina L. | 10079 images |
| Rhynchosia minima (L.) DC. | 280 images |
| Rhynchosia reniformis DC. | 1 images |
| Rhynchospora alba (L.) Vahl | 180 images |
| Rhynchospora capitellata (Michx.) Vahl | 3 images |
| Rhynchospora fascicularis (Michx.) Vahl | 6 images |
| Rhynchospora glomerata (L.) Vahl | 1 images |
| Rhynchospora nivea Boeckeler | 1 images |
| Rhynchospora perplexa Britton | 1 images |
| Ribes acerifolium Howell | 2 images |
| Ribes alpinum L. | 2147 images |
| Ribes amarum McClatchie | 4 images |
| Ribes americanum Mill. | 97 images |
| Ribes aureum Pursh | 1579 images |
| Ribes californicum Hook. & Arn. | 8 images |
| Ribes cereum Douglas | 144 images |
| Ribes cynosbati L. | 236 images |
| Ribes divaricatum Douglas | 27 images |
| Ribes hirtellum Michx. | 5 images |
| Ribes hudsonianum Richardson | 5 images |
| Ribes indecorum Eastw. | 39 images |
| Ribes inerme Rydb. | 24 images |
| Ribes lacustre (Pers.) Poir. | 81 images |
| Ribes laxiflorum Pursh | 10 images |
| Ribes malvaceum Sm. | 69 images |
| Ribes menziesii Pursh | 26 images |
| Ribes missouriense Nutt. | 59 images |
| Ribes montigenum McClatchie | 30 images |
| Ribes nevadense Kellogg | 35 images |
| Ribes nigrum L. | 2756 images |
| Ribes niveum Lindl. | 4 images |
| Ribes oxyacanthoides L. | 2 images |
| Ribes quercetorum Greene | 18 images |
| Ribes roezlii Regel | 59 images |
| Ribes rubrum L. | 5309 images |
| Ribes sanguineum Pursh | 6140 images |
| Ribes sericeum Eastw. | 1 images |
| Ribes speciosum Pursh | 236 images |
| Ribes thacherianum (Jeps.) Munz | 5 images |
| Ribes triste Pall. | 9 images |
| Ribes uva-crispa L. | 3093 images |
| Ribes velutinum Greene | 21 images |
| Ribes victoris Greene | 2 images |
| Ribes viscosissimum Pursh | 24 images |
| Ribes wolfii Rothr. | 4 images |
| Richardia brasiliensis Gomes | 198 images |
| Richardia scabra L. | 559 images |
| Ricinus communis L. | 10784 images |
| Rivina humilis L. | 1011 images |
| Robinia hispida L. | 1269 images |
| Robinia pseudoacacia L. | 21192 images |
| Robinia viscosa Vent. | 43 images |
| Roemeria refracta DC. | 9 images |
| Romanzoffia californica Greene | 21 images |
| Romanzoffia tracyi Jeps. | 1 images |
| Romneya coulteri Harv. | 686 images |
| Romneya trichocalyx Eastw. | 14 images |
| Romulea rosea (L.) Eckl. | 128 images |
| Rorippa amphibia (L.) Besser | 1322 images |
| Rorippa austriaca (Crantz) Besser | 142 images |
| Rorippa curvipes Greene | 10 images |
| Rorippa palustris (L.) Besser | 944 images |
| Rorippa subumbellata Rollins | 13 images |
| Rorippa sylvestris (L.) Besser | 2090 images |
| Rosa acicularis Lindl. | 24 images |
| Rosa arkansana Porter | 89 images |
| Rosa blanda Aiton | 23 images |
| Rosa californica Cham. & Schltdl. | 24 images |
| Rosa canina L. | 21060 images |
| Rosa carolina L. | 28 images |
| Rosa centifolia L. | 43 images |
| Rosa chinensis Jacq. | 25797 images |
| Rosa cinnamomea L. | 2162 images |
| Rosa gallica L. | 10408 images |
| Rosa gymnocarpa Nutt. | 6 images |
| Rosa laevigata Michx. | 44 images |
| Rosa micrantha Borrer ex Sm. | 618 images |
| Rosa minutifolia Engelm. | 4 images |
| Rosa multiflora Thunb. | 4842 images |
| Rosa palustris Marshall | 43 images |
| Rosa rubiginosa L. | 3721 images |
| Rosa rugosa Thunb. | 8860 images |
| Rosa sempervirens L. | 2670 images |
| Rosa setigera Michx. | 261 images |
| Rosa sherardii Davies | 86 images |
| Rosa sicula Tratt. | 11 images |
| Rosa spinosissima L. | 3998 images |
| Rosa stellata Wooton | 8 images |
| Rosa tomentosa Sm. | 224 images |
| Rosa villosa L. | 1153 images |
| Rosa virginiana Mill. | 137 images |
| Rosa woodsii Lindl. | 807 images |
| Rosa xanthina Lindl. | 644 images |
| Rosmarinus officinalis L. | 15925 images |
| Rostraria cristata (L.) Tzvelev | 553 images |
| Rotala ramosior (L.) Koehne | 9 images |
| Rotala rotundifolia (Buch.-Ham. ex Roxb.) Koehne | 11 images |
| Roystonea regia (Kunth) O.F. Cook | 1 images |
| Rubia tinctorum L. | 841 images |
| Rubus allegheniensis Porter | 65 images |
| Rubus arcticus L. | 84 images |
| Rubus argutus Link | 1853 images |
| Rubus armeniacus Focke | 1040 images |
| Rubus baileyanus Britton | 1 images |
| Rubus bifrons Vest ex Tratt. | 46 images |
| Rubus caesius L. | 6602 images |
| Rubus canadensis L. | 182 images |
| Rubus chamaemorus L. | 317 images |
| Rubus cuneifolius Pursh | 1 images |
| Rubus deliciosus Torr. | 93 images |
| Rubus flagellaris Willd. | 31 images |
| Rubus hirsutus Thunb. | 3 images |
| Rubus hispidus L. | 84 images |
| Rubus idaeus L. | 6980 images |
| Rubus illecebrosus Focke | 52 images |
| Rubus macrophyllus Weihe & Nees | 426 images |
| Rubus nivalis Douglas ex Hook. | 14 images |
| Rubus niveus Thunb. | 232 images |
| Rubus occidentalis L. | 2856 images |
| Rubus odoratus L. | 1436 images |
| Rubus parviflorus Nutt. | 553 images |
| Rubus parvifolius L. | 10 images |
| Rubus pedatus Sm. | 36 images |
| Rubus pensilvanicus Poir. | 39 images |
| Rubus phoenicolasius Maxim. | 1714 images |
| Rubus pubescens Raf. | 104 images |
| Rubus setosus Bigelow | 4 images |
| Rubus spectabilis Pursh | 1097 images |
| Rubus trivialis Michx. | 57 images |
| Rubus ulmifolius Schott | 10837 images |
| Rubus ursinus Cham. & Schltdl. | 149 images |
| Rubus vestitus Weihe | 498 images |
| Rudbeckia alpicola Piper | 1 images |
| Rudbeckia fulgida Aiton | 6843 images |
| Rudbeckia glaucescens Eastw. | 8 images |
| Rudbeckia hirta L. | 4537 images |
| Rudbeckia laciniata L. | 2371 images |
| Rudbeckia maxima Nutt. | 77 images |
| Rudbeckia nitida Nutt. | 158 images |
| Rudbeckia occidentalis Nutt. | 70 images |
| Rudbeckia subtomentosa Pursh | 105 images |
| Rudbeckia triloba L. | 1044 images |
| Ruellia ciliatiflora Hook. | 205 images |
| Ruellia humilis Nutt. | 504 images |
| Ruellia nudiflora (Engelm. & A. Gray) Urb. | 5 images |
| Ruellia purshiana Fernald | 2 images |
| Ruellia strepens L. | 117 images |
| Rumex acetosa L. | 6320 images |
| Rumex acetosella L. | 4900 images |
| Rumex alpinus L. | 1471 images |
| Rumex aquaticus L. | 341 images |
| Rumex bucephalophorus L. | 649 images |
| Rumex conglomeratus Murray | 2229 images |
| Rumex crispus L. | 9648 images |
| Rumex cristatus DC. | 103 images |
| Rumex dentatus L. | 15 images |
| Rumex hymenosepalus Torr. | 79 images |
| Rumex longifolius DC. | 1022 images |
| Rumex maritimus L. | 87 images |
| Rumex obtusifolius L. | 12557 images |
| Rumex palustris Sm. | 189 images |
| Rumex patientia L. | 2780 images |
| Rumex paucifolius Nutt. | 11 images |
| Rumex pulcher L. | 2051 images |
| Rumex salicifolius Weinm. | 29 images |
| Rumex sanguineus L. | 1362 images |
| Rumex stenophyllus Ledeb. | 1 images |
| Rumex venosus Pursh | 12 images |
| Rumex verticillatus L. | 24 images |
| Rumohra adiantiformis (G. Forst.) Ching | 301 images |
| Ruppia cirrhosa (Petagna) Grande | 33 images |
| Ruppia maritima L. | 23 images |
| Russelia equisetiformis Schltdl. & Cham. | 2378 images |
| Ruta chalepensis L. | 1295 images |
| Ruta graveolens L. | 3142 images |
| Sabal etonia Swingle ex Nash | 4 images |
| Sabal mexicana Mart. | 112 images |
| Sabal minor (Jacq.) Pers. | 276 images |
| Sabatia angularis (L.) Pursh | 160 images |
| Sabatia brevifolia Raf. | 15 images |
| Sabatia campanulata (L.) Torr. | 2 images |
| Sabatia campestris Nutt. | 130 images |
| Sabatia gentianoides Elliott | 8 images |
| Sabatia stellaris Pursh | 18 images |
| Saccharum alopecuroides (L.) Nutt. | 19 images |
| Saccharum giganteum (Walter) Pers. | 3 images |
| Saccharum officinarum L. | 914 images |
| Saccharum ravennae (L.) L. | 15 images |
| Sacciolepis indica (L.) Chase | 9 images |
| Sacciolepis striata (L.) Nash | 1 images |
| Sageretia thea (Osbeck) M.C. Johnst. | 2 images |
| Sagina apetala Ard. | 196 images |
| Sagina japonica (Sw.) Ohwi | 4 images |
| Sagina nodosa (L.) Fenzl | 119 images |
| Sagina procumbens L. | 905 images |
| Sagittaria graminea Michx. | 65 images |
| Sagittaria guayanensis Kunth | 41 images |
| Sagittaria lancifolia L. | 82 images |
| Sagittaria latifolia Willd. | 694 images |
| Sagittaria montevidensis Cham. & Schltdl. | 153 images |
| Sagittaria rigida Pursh | 8 images |
| Sagittaria sanfordii Greene | 1 images |
| Sagittaria subulata (L.) Buchenau | 9 images |
| Salazaria mexicana Torr. | 4 images |
| Salicornia bigelovii Torr. | 24 images |
| Salicornia depressa Standl. | 4 images |
| Salix alba L. | 9822 images |
| Salix amygdaloides Andersson | 24 images |
| Salix arctica Pall. | 19 images |
| Salix atrocinerea Brot. | 3516 images |
| Salix aurita L. | 1880 images |
| Salix babylonica L. | 6039 images |
| Salix barrattiana Hook. | 4 images |
| Salix bebbiana Sarg. | 28 images |
| Salix bonplandiana Kunth | 8 images |
| Salix boothii Dorn | 1 images |
| Salix brachycarpa Nutt. | 1 images |
| Salix breweri Bebb | 3 images |
| Salix caprea L. | 11976 images |
| Salix caroliniana Michx. | 31 images |
| Salix cascadensis Cockerell | 1 images |
| Salix cinerea L. | 5558 images |
| Salix commutata Bebb | 11 images |
| Salix discolor Muhl. | 447 images |
| Salix drummondiana Barratt ex Hook. | 2 images |
| Salix eriocephala Michx. | 69 images |
| Salix exigua Nutt. | 225 images |
| Salix fragilis L. | 29 images |
| Salix geyeriana Andersson | 5 images |
| Salix glauca L. | 203 images |
| Salix herbacea L. | 317 images |
| Salix hookeriana Barratt ex Hook. | 15 images |
| Salix humilis Marshall | 14 images |
| Salix interior Rowlee | 5 images |
| Salix irrorata Andersson | 2 images |
| Salix laevigata Bebb | 37 images |
| Salix lasiolepis Benth. | 177 images |
| Salix lemmonii Bebb | 2 images |
| Salix lucida Muhl. | 61 images |
| Salix lutea Nutt. | 2 images |
| Salix melanopsis Nutt. | 8 images |
| Salix myricoides Muhl. | 1 images |
| Salix nigra Marshall | 106 images |
| Salix nivalis Hook. | 9 images |
| Salix pentandra L. | 1027 images |
| Salix petrophila Rydb. | 32 images |
| Salix planifolia Pursh | 7 images |
| Salix prolixa Andersson | 13 images |
| Salix purpurea L. | 2985 images |
| Salix pyrifolia Andersson | 2 images |
| Salix scouleriana Barratt ex Hook. | 17 images |
| Salix sericea Marshall | 11 images |
| Salix sitchensis Sanson ex Bong. | 37 images |
| Salix uva-ursi Pursh | 8 images |
| Salix vestita Pursh | 2 images |
| Salix viminalis L. | 1747 images |
| Salpiglossis sinuata Ruiz & Pav. | 85 images |
| Salsola kali L. | 413 images |
| Salsola soda L. | 438 images |
| Salsola tragus L. | 16 images |
| Salsola vermiculata L. | 303 images |
| Salvia aethiopis L. | 316 images |
| Salvia apiana Jeps. | 527 images |
| Salvia argentea L. | 650 images |
| Salvia ballotiflora Benth. | 21 images |
| Salvia carduacea Benth. | 58 images |
| Salvia coccinea P.J. Buchoz ex Etlinger | 2 images |
| Salvia columbariae Benth. | 259 images |
| Salvia dorrii (Kellogg) Abrams | 71 images |
| Salvia eremostachya Jeps. | 1 images |
| Salvia farinacea Benth. | 4775 images |
| Salvia glutinosa L. | 2505 images |
| Salvia greatae Brandegee | 1 images |
| Salvia hispanica L. | 682 images |
| Salvia leucophylla Greene | 304 images |
| Salvia lyrata L. | 728 images |
| Salvia mellifera Greene | 517 images |
| Salvia mohavensis Greene | 1 images |
| Salvia munzii Epling | 4 images |
| Salvia nutans L. | 33 images |
| Salvia occidentalis Sw. | 34 images |
| Salvia officinalis L. | 10914 images |
| Salvia pachyphylla Epling ex Munz | 62 images |
| Salvia pallida Benth. | 16 images |
| Salvia pratensis L. | 14795 images |
| Salvia reflexa Hornem. | 29 images |
| Salvia regla Cav. | 35 images |
| Salvia roemeriana Scheele | 84 images |
| Salvia sclarea L. | 3550 images |
| Salvia serotina L. | 3 images |
| Salvia sonomensis Greene | 43 images |
| Salvia spathacea Greene | 196 images |
| Salvia splendens Sellow ex Roem. & Schult. | 3 images |
| Salvia subincisa Benth. | 9 images |
| Salvia texana (Scheele) Torr. | 24 images |
| Salvia tiliifolia Vahl | 125 images |
| Salvia urticifolia L. | 5 images |
| Salvia vaseyi (Porter) Parish | 10 images |
| Salvia verbenaca L. | 5665 images |
| Salvia verticillata L. | 1688 images |
| Salvia virgata Jacq. | 41 images |
| Salvinia minima Baker | 55 images |
| Salvinia natans (L.) All. | 182 images |
| Samanea saman (Jacq.) Merr. | 365 images |
| Sambucus ebulus L. | 8761 images |
| Sambucus nigra L. | 27472 images |
| Sambucus racemosa L. | 8283 images |
| Samolus ebracteatus Kunth | 13 images |
| Samolus valerandi L. | 854 images |
| Sanguinaria canadensis L. | 1528 images |
| Sanguisorba canadensis L. | 149 images |
| Sanguisorba minor Scop. | 8149 images |
| Sanguisorba officinalis L. | 3117 images |
| Sanicula arctopoides Hook. & Arn. | 121 images |
| Sanicula bipinnata Hook. & Arn. | 26 images |
| Sanicula bipinnatifida Douglas ex Hook. | 1 images |
| Sanicula canadensis L. | 414 images |
| Sanicula crassicaulis Poepp. ex DC. | 208 images |
| Sanicula graveolens Poepp. ex DC. | 18 images |
| Sanicula laciniata Hook. & Arn. | 30 images |
| Sanicula marilandica L. | 20 images |
| Sanicula saxatilis Greene | 5 images |
| Sanicula tuberosa Torr. | 15 images |
| Sansevieria hyacinthoides (L.) Druce | 1311 images |
| Sansevieria trifasciata hort. ex Prain | 1 images |
| Santolina chamaecyparissus L. | 6210 images |
| Sanvitalia procumbens Lam. | 1409 images |
| Sapindus mukorossi Gaertn. | 23 images |
| Sapindus saponaria L. | 471 images |
| Sapium glandulosum (L.) Morong | 109 images |
| Saponaria ocymoides L. | 5576 images |
| Saponaria officinalis L. | 15258 images |
| Sarcobatus vermiculatus (Hook.) Torr. | 32 images |
| Sarcodes sanguinea Torr. | 298 images |
| Sarracenia flava L. | 447 images |
| Sarracenia leucophylla Raf. | 399 images |
| Sarracenia minor Walter | 49 images |
| Sarracenia oreophila (Kearney) Wherry | 2 images |
| Sarracenia psittacina Michx. | 102 images |
| Sarracenia purpurea L. | 1194 images |
| Sarracenia rubra Walter | 71 images |
| Sassafras albidum (Nutt.) Nees | 1378 images |
| Satureja hortensis L. | 1196 images |
| Satureja montana L. | 3620 images |
| Saururus cernuus L. | 335 images |
| Saxifraga adscendens L. | 43 images |
| Saxifraga aizoides L. | 1999 images |
| Saxifraga bronchialis L. | 46 images |
| Saxifraga cernua L. | 28 images |
| Saxifraga ferruginea Graham | 3 images |
| Saxifraga hirculus L. | 114 images |
| Saxifraga mertensiana Bong. | 20 images |
| Saxifraga oppositifolia L. | 993 images |
| Saxifraga paniculata Mill. | 2425 images |
| Saxifraga rivularis L. | 13 images |
| Saxifraga tricuspidata Rottb. | 5 images |
| Saxifraga virginiensis Michx. | 6 images |
| Scabiosa atropurpurea L. | 4511 images |
| Scabiosa columbaria L. | 6913 images |
| Scabiosa ochroleuca L. | 1234 images |
| Scabiosa stellata L. | 71 images |
| Scaevola plumieri (L.) Vahl | 250 images |
| Scaevola sericea Vahl | 2 images |
| Scandix pecten-veneris L. | 2615 images |
| Schaefferia frutescens Jacq. | 4 images |
| Schedonorus arundinaceus (Schreb.) Dumort. | 559 images |
| Schedonorus giganteus (L.) Holub | 113 images |
| Schefflera actinophylla (Endl.) Harms | 2259 images |
| Schefflera arboricola (Hayata) Merr. | 6464 images |
| Scheuchzeria palustris L. | 104 images |
| Schinus molle L. | 6039 images |
| Schinus terebinthifolius Raddi | 567 images |
| Schismus arabicus Nees | 14 images |
| Schizachyrium condensatum (Kunth) Nees | 6 images |
| Schizachyrium scoparium (Michx.) Nash | 48 images |
| Schizanthus pinnatus Ruiz & Pav. | 224 images |
| Schkuhria multiflora Hook. & Arn. | 23 images |
| Schkuhria pinnata (Lam.) Kuntze ex Thell. | 53 images |
| Schoenocaulon dubium (Michx.) Small | 2 images |
| Schoenocaulon texanum Scheele | 6 images |
| Schoenoplectiella hallii (A.Gray) Lye | 1 images |
| Schoenoplectiella purshiana (Fernald) Lye | 3 images |
| Schoenoplectus lacustris (L.) Palla | 608 images |
| Schoenoplectus pungens (Vahl) Palla | 60 images |
| Schoenoplectus tabernaemontani (C.C. Gmel.) Palla | 1 images |
| Schoenoplectus triqueter (L.) Palla | 78 images |
| Schoenus nigricans L. | 371 images |
| Scilla siberica Andrews | 2255 images |
| Scirpoides holoschoenus (L.) Sojak | 74 images |
| Scirpus atrovirens Willd. | 176 images |
| Scirpus cyperinus (L.) Kunth | 110 images |
| Scirpus expansus Fernald | 3 images |
| Scirpus hattorianus Makino | 4 images |
| Scirpus pendulus Muhl. | 30 images |
| Scirpus polyphyllus Vahl | 4 images |
| Scleranthus annuus L. | 267 images |
| Scleranthus perennis L. | 493 images |
| Scleria lithosperma (L.) Sw. | 6 images |
| Sclerocactus parviflorus Clover & Jotter | 20 images |
| Sclerocactus wetlandicus Hochstätter | 5 images |
| Scoliopus bigelovii Torr. | 121 images |
| Scolymus hispanicus L. | 3402 images |
| Scolymus maculatus L. | 228 images |
| Scoparia dulcis L. | 274 images |
| Scorpiurus muricatus L. | 887 images |
| Scorzonera hispanica L. | 572 images |
| Scorzonera laciniata L. | 51 images |
| Scribneria bolanderi (Thurb.) Hack. | 1 images |
| Scrophularia atrata Pennell | 1 images |
| Scrophularia auriculata L. | 2647 images |
| Scrophularia californica Cham. & Schltdl. | 42 images |
| Scrophularia canina L. | 1068 images |
| Scrophularia lanceolata Pursh | 11 images |
| Scrophularia marilandica L. | 47 images |
| Scrophularia montana Wooton | 2 images |
| Scrophularia nodosa L. | 3676 images |
| Scrophularia peregrina L. | 836 images |
| Scrophularia umbrosa Dumort. | 34 images |
| Scutellaria alabamensis Alexander | 25 images |
| Scutellaria altissima L. | 356 images |
| Scutellaria angustifolia Pursh | 2 images |
| Scutellaria antirrhinoides Benth. | 12 images |
| Scutellaria brittonii Porter | 2 images |
| Scutellaria drummondii Benth. | 47 images |
| Scutellaria galericulata L. | 1194 images |
| Scutellaria havanensis Jacq. | 2 images |
| Scutellaria incana Biehler | 88 images |
| Scutellaria integrifolia L. | 81 images |
| Scutellaria lateriflora L. | 82 images |
| Scutellaria muriculata Epling | 1 images |
| Scutellaria nervosa Pursh | 1 images |
| Scutellaria ovata Hill | 74 images |
| Scutellaria parvula Michx. | 29 images |
| Scutellaria racemosa Pers. | 51 images |
| Scutellaria sapphirina (Barneby) Olmstead | 5 images |
| Scutellaria saxatilis Riddell | 1 images |
| Scutellaria serrata Andrews | 20 images |
| Scutellaria siphocampyloides Vatke | 33 images |
| Scutellaria tuberosa Benth. | 74 images |
| Secale cereale L. | 3299 images |
| Sechium edule (Jacq.) Sw. | 809 images |
| Securigera globosa (Lam.) Lassen | 10 images |
| Securigera varia (L.) Lassen | 1717 images |
| Sedella pumila (Benth.) Britton & Rose | 4 images |
| Sedum acre L. | 6918 images |
| Sedum album L. | 9406 images |
| Sedum cockerellii Britton | 2 images |
| Sedum dasyphyllum L. | 3375 images |
| Sedum diffusum S. Watson | 1 images |
| Sedum havardii Rose | 1 images |
| Sedum hispanicum L. | 1178 images |
| Sedum lanceolatum Torr. | 81 images |
| Sedum laxum (Britton) A. Berger | 1 images |
| Sedum lineare Thunb. | 516 images |
| Sedum mexicanum Britton | 680 images |
| Sedum moranense Kunth | 53 images |
| Sedum niveum Davidson | 35 images |
| Sedum ochroleucum Chaix | 660 images |
| Sedum oreganum Nutt. | 104 images |
| Sedum pulchellum Michx. | 49 images |
| Sedum reflexum L. | 89 images |
| Sedum sarmentosum Bunge | 707 images |
| Sedum sexangulare L. | 1888 images |
| Sedum spathulifolium Hook. | 1335 images |
| Sedum stenopetalum Pursh | 19 images |
| Sedum ternatum Michx. | 323 images |
| Selenia aurea Nutt. | 1 images |
| Selenicereus pteranthus (Link ex A. Dietr.) Britton & Rose | 4 images |
| Selenicereus spinulosus (DC.) Britton & Rose | 5 images |
| Selinum carvifolia (L.) L. | 3 images |
| Sempervivum tectorum L. | 11016 images |
| Senecio ampullaceus Hook. | 273 images |
| Senecio aquaticus Hill | 7 images |
| Senecio arizonicus Greene | 2 images |
| Senecio aronicoides DC. | 17 images |
| Senecio atratus Greene | 31 images |
| Senecio blochmaniae Greene | 6 images |
| Senecio californicus DC. | 26 images |
| Senecio cannabinifolius Hook. & Arn. | 1 images |
| Senecio cineraria DC. | 291 images |
| Senecio elegans L. | 272 images |
| Senecio eremophilus Richardson | 2 images |
| Senecio erucifolius L. | 71 images |
| Senecio flaccidus Less. | 134 images |
| Senecio hydrophilus Nutt. | 6 images |
| Senecio integerrimus Nutt. | 114 images |
| Senecio jacobaea L. | 239 images |
| Senecio lugens Richardson | 3 images |
| Senecio pattersonensis Hoover | 1 images |
| Senecio pseudoarnica Less. | 10 images |
| Senecio scorzonella Greene | 19 images |
| Senecio serra Hook. | 11 images |
| Senecio squalidus L. | 3052 images |
| Senecio sylvaticus L. | 1632 images |
| Senecio triangularis Hook. | 274 images |
| Senecio viscosus L. | 725 images |
| Senecio vulgaris L. | 9106 images |
| Senecio warnockii Shinners | 2 images |
| Senecio wootonii Greene | 10 images |
| Senna alata (L.) Roxb. | 850 images |
| Senna artemisioides (Gaudich. ex DC.) Randell | 32 images |
| Senna italica Mill. | 132 images |
| Senna marilandica (L.) Link | 184 images |
| Senna occidentalis (L.) Link | 973 images |
| Senna tora (L.) Roxb. | 208 images |
| Sequoia sempervirens (D.Don) Endl. | 3063 images |
| Sequoiadendron giganteum (Lindl.) J.Buchholz | 4545 images |
| Sericocarpus asteroides (L.) Britton, Sterns & Poggenb. | 15 images |
| Sericocarpus oregonensis Nutt. | 11 images |
| Serratula tinctoria L. | 784 images |
| Sesamum orientale L. | 150 images |
| Sesbania drummondii (Rydb.) Cory | 81 images |
| Sesbania grandiflora (L.) Poir. | 31 images |
| Sesbania herbacea (Mill.) McVaugh | 105 images |
| Sesbania punicea (Cav.) Benth. | 398 images |
| Sesbania vesicaria (Jacq.) Elliott | 8 images |
| Sesbania virgata (Cav.) Poir. | 7 images |
| Sesuvium portulacastrum (L.) L. | 837 images |
| Sesuvium verrucosum Raf. | 34 images |
| Setaria adhaerens (Forssk.) Chiov. | 12 images |
| Setaria barbata (Lam.) Kunth | 32 images |
| Setaria italica (L.) P. Beauv. | 2 images |
| Setaria macrostachya Kunth | 5 images |
| Setaria magna Griseb. | 4 images |
| Setaria parviflora (Poir.) Kerguélen | 64 images |
| Setaria pumila (Poir.) Roem. & Schult. | 2501 images |
| Setaria scheelei (Steud.) Hitchc. | 7 images |
| Setaria verticillata (L.) P. Beauv. | 62 images |
| Setaria vulpiseta (Lam.) Roem. & Schult. | 11 images |
| Seymeria bipinnatisecta Seem. | 4 images |
| Seymeria pectinata Pursh | 3 images |
| Shepherdia argentea (Pursh) Nutt. | 49 images |
| Shepherdia canadensis (L.) Nutt. | 148 images |
| Shepherdia rotundifolia Parry | 17 images |
| Sherardia arvensis L. | 3746 images |
| Sibbaldia procumbens L. | 173 images |
| Sibbaldiopsis tridentata (Aiton) Rydb. | 7 images |
| Sicyos angulatus L. | 401 images |
| Sicyos glaber Wooton | 5 images |
| Sicyos microphyllus Kunth | 8 images |
| Sida abutifolia Mill. | 82 images |
| Sida acuta Burm. f. | 1 images |
| Sida ciliaris L. | 101 images |
| Sida cordifolia L. | 167 images |
| Sida fallax Walp. | 50 images |
| Sida glabra Mill. | 41 images |
| Sida hermaphrodita (L.) Rusby | 37 images |
| Sida rhombifolia L. | 762 images |
| Sida santaremensis Monteiro | 1 images |
| Sida spinosa L. | 169 images |
| Sida urens L. | 27 images |
| Sidalcea campestris Greene | 19 images |
| Sidalcea covillei Greene | 12 images |
| Sidalcea cusickii Piper | 27 images |
| Sidalcea glaucescens Greene | 54 images |
| Sidalcea hickmanii Greene | 6 images |
| Sidalcea multifida Greene | 3 images |
| Sidalcea nelsoniana Piper | 7 images |
| Sidalcea reptans Greene | 11 images |
| Sidastrum paniculatum (L.) Fryxell | 10 images |
| Sideritis lanata L. | 6 images |
| Sideritis montana L. | 135 images |
| Sideritis romana L. | 624 images |
| Sideroxylon foetidissimum Jacq. | 32 images |
| Sideroxylon lanuginosum Michx. | 93 images |
| Sideroxylon lycioides L. | 16 images |
| Sideroxylon reclinatum Michx. | 9 images |
| Sideroxylon salicifolium (L.) Lam. | 27 images |
| Sigesbeckia orientalis L. | 183 images |
| Silene acaulis (L.) Jacq. | 2656 images |
| Silene antirrhina L. | 14 images |
| Silene armeria L. | 858 images |
| Silene bridgesii Rohrb. | 7 images |
| Silene caroliniana Walter | 21 images |
| Silene coeli-rosa (L.) Godr. | 1 images |
| Silene conica L. | 513 images |
| Silene conoidea L. | 12 images |
| Silene csereii Baumg. | 4 images |
| Silene dichotoma Ehrh. | 720 images |
| Silene douglasii Hook. | 49 images |
| Silene gallica L. | 1597 images |
| Silene hookeri Nutt. | 12 images |
| Silene italica (L.) Pers. | 1434 images |
| Silene laciniata Cav. | 247 images |
| Silene latifolia Poir. | 18891 images |
| Silene noctiflora L. | 1216 images |
| Silene nutans L. | 2926 images |
| Silene ovata Pursh | 5 images |
| Silene pendula L. | 997 images |
| Silene regia Sims | 78 images |
| Silene rotundifolia Nutt. | 2 images |
| Silene scouleri Hook. | 2 images |
| Silene uralensis (Rupr.) Bocquet | 14 images |
| Silene virginica L. | 291 images |
| Silene vulgaris (Moench) Garcke | 14027 images |
| Silphium asteriscus L. | 66 images |
| Silphium integrifolium Michx. | 98 images |
| Silphium laciniatum L. | 227 images |
| Silphium mohrii Small | 30 images |
| Silphium perfoliatum L. | 1272 images |
| Silphium radula Nutt. | 33 images |
| Silphium terebinthinaceum Jacq. | 197 images |
| Silybum marianum (L.) Gaertn. | 8664 images |
| Simarouba glauca DC. | 33 images |
| Simmondsia chinensis (Link) C.K. Schneid. | 113 images |
| Sinapis alba L. | 5977 images |
| Sinapis arvensis L. | 9575 images |
| Sisymbrium altissimum L. | 283 images |
| Sisymbrium austriacum Jacq. | 894 images |
| Sisymbrium erysimoides Desf. | 92 images |
| Sisymbrium irio L. | 2344 images |
| Sisymbrium loeselii L. | 1180 images |
| Sisymbrium officinale (L.) Scop. | 5493 images |
| Sisymbrium orientale L. | 310 images |
| Sisymbrium polyceratium L. | 9 images |
| Sisyrinchium albidum Raf. | 34 images |
| Sisyrinchium angustifolium Mill. | 856 images |
| Sisyrinchium chilense Hook. | 5 images |
| Sisyrinchium elmeri Greene | 14 images |
| Sisyrinchium halophilum Greene | 25 images |
| Sisyrinchium langloisii Greene | 51 images |
| Sisyrinchium montanum Greene | 155 images |
| Sisyrinchium mucronatum Michx. | 5 images |
| Sium suave Walter | 65 images |
| Smilax auriculata Walter | 16 images |
| Smilax bona-nox L. | 703 images |
| Smilax glauca Walter | 58 images |
| Smilax herbacea L. | 201 images |
| Smilax lasioneura Hook. | 13 images |
| Smilax laurifolia L. | 44 images |
| Smilax pumila Walter | 20 images |
| Smilax rotundifolia L. | 794 images |
| Smilax tamnoides L. | 145 images |
| Smilax walteri Pursh | 16 images |
| Solandra grandiflora Sw. | 203 images |
| Solanum americanum Mill. | 5513 images |
| Solanum bahamense L. | 60 images |
| Solanum campechiense L. | 10 images |
| Solanum capsicoides All. | 82 images |
| Solanum carolinense L. | 1449 images |
| Solanum dimidiatum Raf. | 166 images |
| Solanum diphyllum L. | 420 images |
| Solanum donianum Walp. | 4 images |
| Solanum douglasii Dunal | 146 images |
| Solanum dulcamara L. | 13291 images |
| Solanum elaeagnifolium Cav. | 1491 images |
| Solanum erianthum D. Don | 133 images |
| Solanum glaucophyllum Desf. | 36 images |
| Solanum heterodoxum Dunal | 20 images |
| Solanum hindsianum Benth. | 42 images |
| Solanum jamaicense Mill. | 45 images |
| Solanum lanceifolium Jacq. | 20 images |
| Solanum lanceolatum Cav. | 5 images |
| Solanum lycopersicum L. | 11531 images |
| Solanum marginatum L. f. | 24 images |
| Solanum mauritianum Scop. | 1571 images |
| Solanum melongena L. | 3917 images |
| Solanum nigrescens M. Martens & Galeotti | 3 images |
| Solanum nigrum L. | 12693 images |
| Solanum peruvianum L. | 1 images |
| Solanum physalifolium Rusby | 203 images |
| Solanum pseudocapsicum L. | 2978 images |
| Solanum racemosum Jacq. | 22 images |
| Solanum rostratum Dunal | 536 images |
| Solanum scabrum Mill. | 70 images |
| Solanum seaforthianum Andrews | 308 images |
| Solanum sisymbriifolium Lam. | 955 images |
| Solanum torvum Sw. | 1075 images |
| Solanum triflorum Nutt. | 57 images |
| Solanum triquetrum Cav. | 20 images |
| Solanum tuberosum L. | 8337 images |
| Solanum umbellatum Mill. | 56 images |
| Solanum umbelliferum Eschsch. | 269 images |
| Solanum viarum Dunal | 223 images |
| Solanum villosum (L.) Mill. | 63 images |
| Solanum virginianum L. | 160 images |
| Soleirolia soleirolii (Req.) Dandy | 1848 images |
| Solenostemon scutellarioides (L.) Codd | 612 images |
| Solidago altissima L. | 403 images |
| Solidago arguta Aiton | 6 images |
| Solidago bicolor L. | 104 images |
| Solidago caesia L. | 396 images |
| Solidago canadensis L. | 13411 images |
| Solidago fistulosa Mill. | 9 images |
| Solidago flexicaulis L. | 330 images |
| Solidago gigantea Aiton | 5823 images |
| Solidago glomerata Michx. | 1 images |
| Solidago hispida Muhl. ex Willd. | 18 images |
| Solidago juncea Aiton | 407 images |
| Solidago latissimifolia Mill. | 2 images |
| Solidago missouriensis Nutt. | 23 images |
| Solidago multiradiata Aiton | 28 images |
| Solidago nemoralis Aiton | 153 images |
| Solidago odora Aiton | 51 images |
| Solidago patula Muhl. ex Willd. | 23 images |
| Solidago petiolaris Aiton | 10 images |
| Solidago pinetorum Small | 8 images |
| Solidago puberula Nutt. | 19 images |
| Solidago rugosa Mill. | 964 images |
| Solidago sempervirens L. | 53 images |
| Solidago simplex Kunth | 16 images |
| Solidago speciosa Nutt. | 97 images |
| Solidago sphacelata Raf. | 2 images |
| Solidago squarrosa Nutt. | 12 images |
| Solidago stricta Aiton | 8 images |
| Solidago uliginosa Nutt. | 31 images |
| Solidago ulmifolia Muhl. ex Willd. | 60 images |
| Solidago velutina DC. | 89 images |
| Soliva sessilis Ruiz & Pav. | 131 images |
| Sonchus arvensis L. | 4747 images |
| Sonchus asper (L.) Hill | 12615 images |
| Sonchus oleraceus L. | 12633 images |
| Sonchus tenerrimus L. | 4611 images |
| Sophora secundiflora (Ortega) Lag. ex DC. | 62 images |
| Sophora tomentosa L. | 214 images |
| Sorbaria kirilowii (Regel) Maxim. | 74 images |
| Sorbaria sorbifolia (L.) A. Braun | 3 images |
| Sorbus americana Marshall | 195 images |
| Sorbus aucuparia L. | 17854 images |
| Sorbus californica Greene | 24 images |
| Sorbus hybrida L. | 1 images |
| Sorbus scopulina Greene | 51 images |
| Sorghastrum nutans (L.) Nash | 169 images |
| Sorghastrum secundum (Elliott) Nash | 2 images |
| Sorghum bicolor (L.) Moench | 2088 images |
| Sorghum halepense (L.) Pers. | 2749 images |
| Sparaxis tricolor (Schneev.) Ker Gawl. | 570 images |
| Sparganium americanum Nutt. | 14 images |
| Sparganium androcladum (Engelm.) Morong | 3 images |
| Sparganium angustifolium Michx. | 261 images |
| Sparganium emersum Rehmann | 181 images |
| Sparganium erectum L. | 962 images |
| Sparganium eurycarpum Engelm. | 46 images |
| Sparganium natans L. | 50 images |
| Spartina alterniflora Loisel. | 56 images |
| Spartina bakeri Merr. | 1 images |
| Spartina cynosuroides (L.) Roth | 1 images |
| Spartina foliosa Trin. | 2 images |
| Spartina gracilis Trin. | 4 images |
| Spartina patens (Aiton) Muhl. | 47 images |
| Spartina pectinata Bosc ex Link | 56 images |
| Spartium junceum L. | 5739 images |
| Spathodea campanulata P. Beauv. | 118 images |
| Spathoglottis plicata Blume | 1340 images |
| Spergula arvensis L. | 1158 images |
| Spergula morisonii Boreau | 153 images |
| Spergula pentandra L. | 50 images |
| Spergularia maritima (All.) Chiov. | 1 images |
| Spermacoce assurgens Ruiz & Pav. | 6 images |
| Spermacoce glabra Michx. | 31 images |
| Spermacoce prostrata Aubl. | 39 images |
| Spermacoce tenuior L. | 14 images |
| Spermacoce verticillata L. | 284 images |
| Sphaeralcea bonariensis (Cav.) Griseb. | 53 images |
| Sphaeralcea coccinea (Nutt.) Rydb. | 151 images |
| Sphaerophysa salsula (Pall.) DC. | 16 images |
| Sphagneticola trilobata (L.) Pruski | 1900 images |
| Sphenoclea zeylanica Gaertn. | 21 images |
| Sphenopholis intermedia (Rydb.) Rydb. | 9 images |
| Sphenopholis obtusata (Michx.) Scribn. | 9 images |
| Spigelia anthelmia L. | 202 images |
| Spigelia marilandica (L.) L. | 143 images |
| Spinacia oleracea L. | 1501 images |
| Spiraea alba Du Roi | 1871 images |
| Spiraea betulifolia Pall. | 105 images |
| Spiraea cantoniensis Lour. | 1786 images |
| Spiraea chamaedryfolia L. | 1815 images |
| Spiraea corymbosa Raf. | 2 images |
| Spiraea douglasii Hook. | 3321 images |
| Spiraea hypericifolia L. | 419 images |
| Spiraea japonica L. f. | 12 images |
| Spiraea prunifolia Siebold & Zucc. | 239 images |
| Spiraea salicifolia L. | 440 images |
| Spiraea thunbergii Siebold ex Blume | 1999 images |
| Spiraea tomentosa L. | 726 images |
| Spiraea trilobata L. | 1927 images |
| Spiranthes brevilabris Lindl. | 1 images |
| Spiranthes cernua (L.) Rich. | 157 images |
| Spiranthes delitescens Sheviak | 1 images |
| Spiranthes diluvialis Sheviak | 5 images |
| Spiranthes lacera (Raf.) Raf. | 62 images |
| Spiranthes longilabris Lindl. | 1 images |
| Spiranthes magnicamporum Sheviak | 26 images |
| Spiranthes ochroleuca (Rydb.) Rydb. | 6 images |
| Spiranthes odorata (Nutt.) Lindl. | 3 images |
| Spiranthes ovalis Lindl. | 26 images |
| Spiranthes porrifolia Lindl. | 13 images |
| Spiranthes romanzoffiana Cham. | 90 images |
| Spiranthes tuberosa Raf. | 3 images |
| Spondias purpurea L. | 473 images |
| Sporobolus airoides (Torr.) Torr. | 24 images |
| Sporobolus fimbriatus (Trin.) Nees | 35 images |
| Sporobolus neglectus Nash | 2 images |
| Sporobolus pyramidatus (Lam.) Hitchc. | 4 images |
| Sporobolus tenuissimus (Mart. ex Schrank) Kuntze | 3 images |
| Sporobolus virginicus (L.) Kunth | 24 images |
| Stachys affinis Bunge | 55 images |
| Stachys ajugoides Benth. | 39 images |
| Stachys annua (L.) L. | 515 images |
| Stachys arvensis (L.) L. | 582 images |
| Stachys bullata Benth. | 137 images |
| Stachys byzantina K. Koch | 2 images |
| Stachys chamissonis Benth. | 73 images |
| Stachys clingmanii Small | 6 images |
| Stachys coccinea Ortega | 41 images |
| Stachys drummondii Benth. | 5 images |
| Stachys germanica L. | 1320 images |
| Stachys longispicata Boiss. | 1 images |
| Stachys mexicana Benth. | 9 images |
| Stachys ocymastrum (L.) Briq. | 524 images |
| Stachys officinalis (L.) Trevis. | 1386 images |
| Stachys palustris L. | 4825 images |
| Stachys pilosa Nutt. | 16 images |
| Stachys pycnantha Benth. | 2 images |
| Stachys recta L. | 3133 images |
| Stachys rigida Nutt. ex Benth. | 34 images |
| Stachys sylvatica L. | 9213 images |
| Stachys tenuifolia Willd. | 10 images |
| Stachytarpheta cayennensis (Rich.) Vahl | 390 images |
| Stachytarpheta jamaicensis (L.) Vahl | 1161 images |
| Stachytarpheta urticifolia Sims | 115 images |
| Stanleya pinnata (Pursh) Britton | 87 images |
| Stanleya viridiflora Nutt. | 3 images |
| Staphylea trifolia L. | 272 images |
| Steinchisma hians (Elliott) Nash | 4 images |
| Stellaria alsine Grimm | 221 images |
| Stellaria borealis Bigelow | 3 images |
| Stellaria crassifolia Ehrh. | 20 images |
| Stellaria graminea L. | 3844 images |
| Stellaria holostea L. | 10250 images |
| Stellaria littoralis Torr. | 7 images |
| Stellaria longifolia Muhl. ex Willd. | 9 images |
| Stellaria longipes Goldie | 21 images |
| Stellaria media (L.) Vill. | 11943 images |
| Stellaria nitens Nutt. | 5 images |
| Stellaria obtusa Engelm. | 2 images |
| Stellaria pubera Michx. | 245 images |
| Stemodia durantifolia (L.) Sw. | 57 images |
| Stenandrium dulce (Cav.) Nees | 13 images |
| Stenanthium gramineum (Ker Gawl.) Morong | 18 images |
| Stenaria nigricans (Lam.) Terrell | 101 images |
| Stenotaphrum secundatum (Walter) Kuntze | 465 images |
| Stenotus acaulis (Nutt.) Nutt. | 46 images |
| Stenotus armerioides Nutt. | 9 images |
| Stephanandra incisa (Thunb.) Zabel | 267 images |
| Stephanomeria diegensis Gottlieb | 25 images |
| Stephanomeria exigua Nutt. | 12 images |
| Stephanomeria malheurensis Gottlieb | 1 images |
| Stephanomeria virgata Benth. | 40 images |
| Sternbergia lutea (L.) Ker Gawl. ex Spreng. | 2719 images |
| Stevia micrantha Lag. | 8 images |
| Stevia serrata Cav. | 23 images |
| Stevia viscida Kunth | 24 images |
| Stewartia malacodendron L. | 37 images |
| Stewartia ovata (Cav.) Weath. | 17 images |
| Stictocardia tiliifolia (Desr.) Hallier f. | 79 images |
| Stillingia spinulosa Torr. | 12 images |
| Stillingia sylvatica L. | 28 images |
| Stokesia laevis (Hill) Greene | 375 images |
| Streptanthus barbiger Greene | 1 images |
| Streptanthus bernardinus (Greene) Parish | 2 images |
| Streptanthus cordatus Nutt. | 5 images |
| Streptanthus glandulosus Hook. | 80 images |
| Streptanthus insignis Jeps. | 5 images |
| Streptanthus oliganthus Rollins | 1 images |
| Streptanthus tortuosus Kellogg | 90 images |
| Streptopus amplexifolius (L.) DC. | 540 images |
| Streptopus lanceolatus (Aiton) Reveal | 91 images |
| Streptopus streptopoides (Ledeb.) Frye & Rigg | 10 images |
| Striga asiatica (L.) Kuntze | 120 images |
| Striga gesnerioides (Willd.) Vatke | 29 images |
| Strophostyles helvola (L.) Elliott | 73 images |
| Strumpfia maritima Jacq. | 10 images |
| Strychnos spinosa Lam. | 154 images |
| Stuckenia filiformis (Pers.) Börner | 4 images |
| Stuckenia pectinata (L.) Börner | 103 images |
| Stuckenia striata (Ruiz & Pav.) Holub | 2 images |
| Stylisma patens (Desr.) Myint | 1 images |
| Stylisma villosa (Nash) House | 1 images |
| Stylocline citroleum Morefield | 3 images |
| Stylophorum diphyllum (Michx.) Nutt. | 385 images |
| Stylosanthes humilis Kunth | 54 images |
| Stylosanthes viscosa (L.) Sw. | 39 images |
| Styphnolobium japonicum (L.) Schott | 2102 images |
| Styrax americanus Lam. | 22 images |
| Styrax grandifolius Aiton | 3 images |
| Styrax japonicus Siebold & Zucc. | 247 images |
| Suaeda linearis (Elliott) Moq. | 3 images |
| Suaeda maritima (L.) Dumort. | 836 images |
| Suaeda taxifolia (Standl.) Standl. | 6 images |
| Subularia aquatica L. | 26 images |
| Succisa pratensis Moench | 4113 images |
| Suksdorfia ranunculifolia (Hook.) Engl. | 2 images |
| Suriana maritima L. | 149 images |
| Swertia perennis L. | 584 images |
| Swietenia mahagoni (L.) Jacq. | 263 images |
| Syagrus romanzoffiana (Cham.) Glassman | 1280 images |
| Symphoricarpos albus (L.) S.F. Blake | 2 images |
| Symphoricarpos mollis Nutt. | 146 images |
| Symphoricarpos orbiculatus Moench | 2968 images |
| Symphoricarpos rotundifolius A. Gray | 1 images |
| Symphyotrichum cordifolium (L.) G.L. Nesom | 6 images |
| Symphyotrichum ericoides (L.) G.L. Nesom | 2 images |
| Symphyotrichum laeve (L.) A. Löve & D. Löve | 1 images |
| Symphyotrichum novae-angliae (L.) G.L. Nesom | 5 images |
| Symphyotrichum novi-belgii (L.) G.L. Nesom | 4 images |
| Symphyotrichum oolentangiense (Riddell) G.L. Nesom | 1 images |
| Symphyotrichum pilosum (Willd.) G.L. Nesom | 6 images |
| Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L. Nesom | 4 images |
| Symphytum asperum Lepechin | 1 images |
| Symphytum officinale L. | 17999 images |
| Symphytum tuberosum L. | 4102 images |
| Symplocarpus foetidus (L.) Salisb. ex W.P.C. Barton | 1 images |
| Symplocos paniculata (Thunb.) Miq. | 24 images |
| Symplocos tinctoria (L.) L'Hér. | 5 images |
| Synedrella nodiflora (L.) Gaertn. | 505 images |
| Syngonium angustatum Schott | 509 images |
| Syngonium podophyllum Schott | 7083 images |
| Syringa pekinensis Rupr. | 2 images |
| Syringa villosa Vahl | 180 images |
| Syringa vulgaris L. | 19212 images |
| Syzygium cumini (L.) Skeels | 1168 images |
| Syzygium jambos (L.) Alston | 1281 images |
| Tabebuia heterophylla (DC.) Britton | 428 images |
| Tabernaemontana alba Mill. | 75 images |
| Taeniatherum caput-medusae (L.) Nevski | 81 images |
| Taenidia integerrima (L.) Drude | 43 images |
| Tagetes erecta L. | 8283 images |
| Tagetes lemmonii A. Gray | 1 images |
| Tagetes micrantha Cav. | 7 images |
| Tagetes minuta L. | 898 images |
| Tagetes patula L. | 4812 images |
| Talinum paniculatum (Jacq.) Gaertn. | 1713 images |
| Talinum triangulare (Jacq.) Willd. | 1 images |
| Tamarindus indica L. | 1524 images |
| Tamarix africana Poir. | 454 images |
| Tamarix canariensis Willd. | 480 images |
| Tamarix chinensis Lour. | 151 images |
| Tamarix gallica L. | 5720 images |
| Tamarix parviflora DC. | 2783 images |
| Tamarix ramosissima Ledeb. | 1485 images |
| Tanacetum balsamita L. | 491 images |
| Tanacetum coccineum (Willd.) Grierson | 792 images |
| Tanacetum corymbosum (L.) Sch. Bip. | 4 images |
| Tanacetum parthenium (L.) Sch. Bip. | 4 images |
| Tanacetum vulgare L. | 16604 images |
| Taraxacum officinale F.H. Wigg. | 22 images |
| Taraxacum palustre (Lyons) Symons | 248 images |
| Taxodium ascendens Brongn. | 5 images |
| Taxodium distichum (L.) Rich. | 7925 images |
| Taxus baccata L. | 11726 images |
| Taxus brevifolia Nutt. | 972 images |
| Taxus canadensis Marshall | 1016 images |
| Taxus cuspidata Siebold & Zucc. | 1399 images |
| Taxus floridana Nutt. ex Chapm. | 3 images |
| Tecoma capensis (Thunb.) Lindl. | 1704 images |
| Tecoma stans (L.) Juss. ex Kunth | 5221 images |
| Tectaria heracleifolia (Willd.) Underw. | 28 images |
| Tectaria incisa Cav. | 32 images |
| Telesonix jamesii (Torr.) Raf. | 10 images |
| Tellima grandiflora (Pursh) Douglas ex Lindl. | 1142 images |
| Tephrosia cinerea (L.) Pers. | 25 images |
| Tephrosia onobrychoides Nutt. | 2 images |
| Tephrosia purpurea (L.) Pers. | 184 images |
| Tephrosia virginiana (L.) Pers. | 66 images |
| Terminalia catappa L. | 2591 images |
| Tetracoccus dioicus Parry | 24 images |
| Tetradymia canescens DC. | 81 images |
| Tetradymia filifolia Greene | 23 images |
| Tetragonia tetragonioides (Pall.) Kuntze | 284 images |
| Tetragonotheca helianthoides L. | 4 images |
| Tetramerium nervosum Nees | 36 images |
| Tetraneuris herbacea Greene | 8 images |
| Tetraneuris ivesiana Greene | 3 images |
| Tetraneuris scaposa (DC.) Greene | 124 images |
| Tetrapanax papyrifer (Hook.) K. Koch | 1 images |
| Tetrazygia bicolor (Mill.) Cogn. | 9 images |
| Teucrium botrys L. | 338 images |
| Teucrium canadense L. | 548 images |
| Teucrium cubense Jacq. | 18 images |
| Teucrium fruticans L. | 5725 images |
| Teucrium laciniatum Torr. | 24 images |
| Teucrium orientale L. | 19 images |
| Teucrium scorodonia L. | 7132 images |
| Thalia geniculata L. | 158 images |
| Thalictrum alpinum L. | 62 images |
| Thalictrum aquilegifolium L. | 2 images |
| Thalictrum clavatum DC. | 5 images |
| Thalictrum dioicum L. | 456 images |
| Thalictrum mirabile Small | 3 images |
| Thalictrum pubescens Pursh | 447 images |
| Thalictrum revolutum DC. | 20 images |
| Thalictrum thalictroides (L.) Eames & B. Boivin | 2 images |
| Thaspium barbinode (Michx.) Nutt. | 33 images |
| Thelocactus setispinus (Engelm.) E.F. Anderson | 2 images |
| Thelypteris noveboracensis (L.) Nieuwl. | 226 images |
| Thelypteris opulenta (Kaulf.) Fosberg | 2 images |
| Thelypteris palustris Schott | 294 images |
| Thelypteris resinifera (Desv.) Proctor | 5 images |
| Thelypteris reticulata (L.) Proctor | 21 images |
| Thelypteris serrata (Cav.) Alston | 16 images |
| Themeda quadrivalvis (L.) Kuntze | 4 images |
| Themeda triandra Forssk. | 247 images |
| Thermopsis gracilis Howell | 12 images |
| Thermopsis montana Nutt. | 5 images |
| Thevetia peruviana (Pers.) K. Schum. | 4 images |
| Thladiantha dubia Bunge | 112 images |
| Thlaspi alliaceum L. | 218 images |
| Thlaspi arvense L. | 2521 images |
| Thuja occidentalis L. | 6760 images |
| Thunbergia alata Bojer ex Sims | 3649 images |
| Thunbergia erecta (Benth.) T. Anderson | 4 images |
| Thunbergia fragrans Roxb. | 240 images |
| Thunbergia grandiflora Roxb. | 997 images |
| Thurovia triflora Rose | 4 images |
| Thymelaea passerina (L.) Coss. & Germ. | 62 images |
| Thymophylla acerosa (DC.) Strother | 5 images |
| Thymophylla micropoides (DC.) Strother | 1 images |
| Thymophylla pentachaeta (DC.) Small | 88 images |
| Thymophylla setifolia Lag. | 7 images |
| Thymophylla tenuiloba (DC.) Small | 52 images |
| Thymus praecox Opiz | 1938 images |
| Thymus pulegioides L. | 2056 images |
| Thymus vulgaris L. | 9112 images |
| Thysanocarpus curvipes Hook. | 70 images |
| Thysanocarpus laciniatus Nutt. | 27 images |
| Thysanocarpus radians Benth. | 15 images |
| Thysanolaena latifolia (Roxb. ex Hornem.) Honda | 79 images |
| Tiarella cordifolia L. | 878 images |
| Tiarella trifoliata L. | 148 images |
| Tidestromia lanuginosa (Nutt.) Standl. | 24 images |
| Tidestromia suffruticosa (Torr.) Standl. | 8 images |
| Tilia americana L. | 4175 images |
| Tilia cordata Mill. | 10723 images |
| Tilia platyphyllos Scop. | 11468 images |
| Tilia tomentosa Moench | 3585 images |
| Tillandsia baileyi Rose ex Small | 9 images |
| Tillandsia bartramii Elliott | 30 images |
| Tillandsia bulbosa Hook. | 107 images |
| Tillandsia fasciculata Sw. | 234 images |
| Tillandsia flexuosa Sw. | 18 images |
| Tillandsia ionantha Planch. | 787 images |
| Tillandsia paucifolia Baker | 144 images |
| Tillandsia pruinosa Sw. | 13 images |
| Tillandsia recurvata (L.) L. | 471 images |
| Tillandsia setacea Sw. | 5 images |
| Tillandsia usneoides (L.) L. | 818 images |
| Tillandsia utriculata L. | 145 images |
| Tillandsia variabilis Schltdl. | 5 images |
| Tipularia discolor (Pursh) Nutt. | 323 images |
| Tithonia diversifolia (Hemsl.) A. Gray | 4 images |
| Tithonia rotundifolia (Mill.) S.F. Blake | 3 images |
| Tofieldia pusilla (Michx.) Pers. | 87 images |
| Tolpis barbata (L.) Gaertn. | 864 images |
| Tordylium apulum L. | 1480 images |
| Torenia fournieri Linden ex E. Fourn. | 1100 images |
| Torilis arvensis (Huds.) Link | 4462 images |
| Torilis japonica (Houtt.) DC. | 1370 images |
| Torilis nodosa (L.) Gaertn. | 806 images |
| Torilis scabra (Thunb.) DC. | 1 images |
| Torreya californica Torr. | 195 images |
| Torreya taxifolia Arn. | 5 images |
| Torreyochloa pallida (Torr.) Church | 10 images |
| Tournefortia hirsutissima L. | 35 images |
| Tournefortia volubilis L. | 2 images |
| Townsendia exscapa (Richardson) Porter | 11 images |
| Townsendia formosa Greene | 1 images |
| Townsendia hookeri Beaman | 10 images |
| Townsendia incana Nutt. | 3 images |
| Townsendia jonesii (Beaman) Reveal | 1 images |
| Townsendia spathulata Nutt. | 3 images |
| Toxicodendron pubescens Mill. | 37 images |
| Toxicodendron radicans (L.) Kuntze | 4573 images |
| Toxicodendron rydbergii (Small ex Rydb.) Greene | 116 images |
| Toxicodendron vernix (L.) Kuntze | 67 images |
| Trachelospermum jasminoides (Lindl.) Lem. | 8635 images |
| Tradescantia brevifolia (Torr.) Rose | 17 images |
| Tradescantia crassifolia Cav. | 24 images |
| Tradescantia crassula Link & Otto | 1 images |
| Tradescantia fluminensis Vell. | 6319 images |
| Tradescantia gigantea Rose | 12 images |
| Tradescantia hirsutiflora Bush | 7 images |
| Tradescantia occidentalis (Britton) Smyth | 92 images |
| Tradescantia ohiensis Raf. | 752 images |
| Tradescantia pallida (Rose) D.R. Hunt | 19 images |
| Tradescantia pinetorum Greene | 5 images |
| Tradescantia reverchonii Bush | 21 images |
| Tradescantia spathacea Sw. | 4517 images |
| Tradescantia subaspera Ker Gawl. | 52 images |
| Tradescantia virginiana L. | 4596 images |
| Tradescantia zebrina hort. ex Bosse | 2 images |
| Tragia cordata Michx. | 12 images |
| Tragia ramosa Torr. | 38 images |
| Tragia urticifolia Michx. | 14 images |
| Tragopogon dubius Scop. | 5354 images |
| Tragopogon floccosus Waldst. & Kit. | 7 images |
| Tragopogon porrifolius L. | 4545 images |
| Tragus berteronianus Schult. | 74 images |
| Tragus racemosus (L.) All. | 160 images |
| Trapa natans L. | 318 images |
| Trautvetteria caroliniensis (Walter) Vail | 34 images |
| Trema micrantha (L.) Blume | 1 images |
| Trema orientalis (L.) Blume | 1 images |
| Triadenum fraseri (Spach) Gleason | 29 images |
| Triadenum virginicum (L.) Raf. | 20 images |
| Triadica sebifera (L.) Small | 607 images |
| Triantha glutinosa (Michx.) Baker | 39 images |
| Triantha racemosa (Walter) Small | 1 images |
| Trianthema portulacastrum L. | 267 images |
| Tribulus cistoides L. | 199 images |
| Tribulus terrestris L. | 2103 images |
| Trichloris crinita (Lag.) Parodi | 6 images |
| Trichomanes krausii Hook. & Grev. | 8 images |
| Trichomanes membranaceum L. | 6 images |
| Trichophorum alpinum (L.) Pers. | 121 images |
| Trichophorum cespitosum (L.) Hartm. | 340 images |
| Trichophorum pumilum (Vahl) Schinz & Thell. | 19 images |
| Trichosanthes cucumerina L. | 156 images |
| Trichostema brachiatum L. | 24 images |
| Trichostema dichotomum L. | 125 images |
| Trichostema lanatum Benth. | 119 images |
| Trichostema lanceolatum Benth. | 120 images |
| Trichostema oblongum Benth. | 14 images |
| Trichostema parishii Vasey | 31 images |
| Trichostema setaceum Houtt. | 4 images |
| Trichostema simulatum Jeps. | 4 images |
| Tricyrtis hirta (Thunb.) Hook. | 720 images |
| Tridax procumbens L. | 497 images |
| Tridens albescens (Vasey) Wooton & Standl. | 5 images |
| Tridens flavus (L.) Hitchc. | 62 images |
| Tridens muticus (Torr.) Nash | 3 images |
| Tridens strictus (Nutt.) Nash | 2 images |
| Trientalis borealis Raf. | 486 images |
| Trientalis europaea L. | 22 images |
| Trifolium alexandrinum L. | 284 images |
| Trifolium amabile Kunth | 10 images |
| Trifolium angustifolium L. | 1462 images |
| Trifolium arvense L. | 3189 images |
| Trifolium attenuatum Greene | 4 images |
| Trifolium aureum Pollich | 766 images |
| Trifolium barbigerum Torr. | 19 images |
| Trifolium campestre Schreb. | 3608 images |
| Trifolium cernuum Brot. | 11 images |
| Trifolium ciliolatum Benth. | 26 images |
| Trifolium dalmaticum Vis. | 7 images |
| Trifolium depauperatum Desv. | 41 images |
| Trifolium dubium Sibth. | 2904 images |
| Trifolium fragiferum L. | 1197 images |
| Trifolium fucatum Lindl. | 64 images |
| Trifolium gemellum Pourr. ex Willd. | 10 images |
| Trifolium glomeratum L. | 143 images |
| Trifolium hirtum All. | 290 images |
| Trifolium hybridum L. | 1387 images |
| Trifolium incarnatum L. | 6154 images |
| Trifolium lappaceum L. | 167 images |
| Trifolium macrocephalum (Pursh) Poir. | 25 images |
| Trifolium medium L. | 2335 images |
| Trifolium michelianum Savi | 55 images |
| Trifolium microcephalum Pursh | 5 images |
| Trifolium nanum Torr. | 9 images |
| Trifolium nigrescens Viv. | 668 images |
| Trifolium oliganthum Steud. | 5 images |
| Trifolium pratense L. | 16971 images |
| Trifolium reflexum L. | 2 images |
| Trifolium repens L. | 11726 images |
| Trifolium resupinatum L. | 1270 images |
| Trifolium retusum L. | 27 images |
| Trifolium scabrum L. | 260 images |
| Trifolium spumosum L. | 101 images |
| Trifolium squamosum L. | 115 images |
| Trifolium stellatum L. | 1614 images |
| Trifolium striatum L. | 228 images |
| Trifolium subterraneum L. | 585 images |
| Trifolium suffocatum L. | 80 images |
| Trifolium tomentosum L. | 443 images |
| Trifolium vesiculosum Savi | 63 images |
| Trifolium willdenovii Spreng. | 56 images |
| Trifolium wormskioldii Lehm. | 53 images |
| Triglochin maritima L. | 351 images |
| Triglochin palustris L. | 140 images |
| Trigonella caerulea (L.) Ser. | 52 images |
| Trigonella foenum-graecum L. | 490 images |
| Trillium catesbaei Elliott | 68 images |
| Trillium cernuum L. | 70 images |
| Trillium chloropetalum (Torr.) Howell | 165 images |
| Trillium cuneatum Raf. | 282 images |
| Trillium erectum L. | 970 images |
| Trillium flexipes Raf. | 61 images |
| Trillium grandiflorum (Michx.) Salisb. | 873 images |
| Trillium lancifolium Raf. | 4 images |
| Trillium maculatum Raf. | 13 images |
| Trillium nivale Riddell | 30 images |
| Trillium ovatum Pursh | 481 images |
| Trillium petiolatum Pursh | 3 images |
| Trillium pusillum Michx. | 3 images |
| Trillium rugelii Rendle | 22 images |
| Trillium sessile L. | 294 images |
| Trillium simile Gleason | 11 images |
| Trillium underwoodii Small | 9 images |
| Trillium undulatum Willd. | 254 images |
| Trillium viridescens Nutt. | 5 images |
| Trimezia martinicensis (Jacq.) Herb. | 627 images |
| Triodanis biflora (Ruiz & Pav.) Greene | 7 images |
| Triodanis perfoliata (L.) Nieuwl. | 535 images |
| Triosteum angustifolium L. | 9 images |
| Triosteum perfoliatum L. | 49 images |
| Triphora amazonica Schltr. | 6 images |
| Triplaris melaenodendron (Bertol.) Standl. & Steyerm. | 14 images |
| Triplasis purpurea (Walter) Chapm. | 3 images |
| Tripolium pannonicum (Jacq.) Dobrocz. | 1900 images |
| Tripsacum dactyloides (L.) L. | 77 images |
| Tripterocalyx crux-maltae (Kellogg) Standl. | 3 images |
| Tristagma uniflorum (Lindl.) Traub | 2162 images |
| Triteleia clementina Hoover | 1 images |
| Triteleia dudleyi Hoover | 1 images |
| Triteleia grandiflora Lindl. | 57 images |
| Triteleia hendersonii Greene | 16 images |
| Triteleia hyacinthina (Lindl.) Greene | 85 images |
| Triteleia laxa Benth. | 588 images |
| Triteleia lugens Greene | 12 images |
| Triteleia montana Hoover | 11 images |
| Triteleia peduncularis Lindl. | 10 images |
| Triticum aestivum L. | 21207 images |
| Triticum spelta L. | 2 images |
| Triticum turgidum L. | 1381 images |
| Triumfetta lappula L. | 11 images |
| Triumfetta rhomboidea Jacq. | 151 images |
| Triumfetta semitriloba Jacq. | 60 images |
| Trixis californica Kellogg | 40 images |
| Trixis inula Crantz | 24 images |
| Trollius laxus Salisb. | 22 images |
| Tropaeolum majus L. | 9738 images |
| Tropidocarpum gracile Hook. | 24 images |
| Tsuga canadensis (L.) Carrière | 1257 images |
| Tsuga caroliniana Engelm. | 37 images |
| Tsuga heterophylla (Raf.) Sarg. | 1018 images |
| Tsuga mertensiana (Bong.) Carrière | 72 images |
| Tulipa clusiana DC. | 823 images |
| Tulipa gesneriana L. | 8492 images |
| Tulipa sylvestris L. | 3645 images |
| Turbina corymbosa (L.) Raf. | 23 images |
| Turgenia latifolia (L.) Hoffm. | 121 images |
| Turnera diffusa Willd. ex Schult. | 68 images |
| Turnera ulmifolia L. | 1554 images |
| Tussilago farfara L. | 11391 images |
| Typha angustifolia L. | 977 images |
| Typha domingensis Pers. | 197 images |
| Typha latifolia L. | 3288 images |
| Ulex europaeus L. | 7059 images |
| Ulmus alata Michx. | 478 images |
| Ulmus americana L. | 4219 images |
| Ulmus crassifolia Nutt. | 195 images |
| Ulmus glabra Huds. | 6862 images |
| Ulmus parvifolia Jacq. | 998 images |
| Ulmus pumila L. | 2675 images |
| Ulmus rubra Muhl. | 132 images |
| Ulmus serotina Sarg. | 29 images |
| Ulmus thomasii Sarg. | 159 images |
| Umbellularia californica (Hook. & Arn.) Nutt. | 256 images |
| Uncinia hamata (Sw.) Urb. | 4 images |
| Ungnadia speciosa Endl. | 115 images |
| Uniola paniculata L. | 82 images |
| Urena lobata L. | 904 images |
| Urochloa mosambicensis (Hack.) Dandy | 11 images |
| Urochloa panicoides P. Beauv. | 79 images |
| Urochloa reptans (L.) Stapf | 4 images |
| Urtica chamaedryoides Pursh | 42 images |
| Urtica dioica L. | 13866 images |
| Urtica gracilenta Greene | 9 images |
| Urtica urens L. | 4077 images |
| Urvillea ulmacea Kunth | 25 images |
| Utricularia floridana Nash | 13 images |
| Utricularia foliosa L. | 33 images |
| Utricularia geminiscapa Benj. | 10 images |
| Utricularia gibba L. | 41 images |
| Utricularia inflata Walter | 2 images |
| Utricularia intermedia Hayne | 80 images |
| Utricularia juncea Vahl | 4 images |
| Utricularia minor L. | 130 images |
| Utricularia purpurea Walter | 12 images |
| Utricularia radiata Small | 12 images |
| Utricularia simulans Pilg. | 1 images |
| Utricularia striata Leconte ex Torr. | 8 images |
| Utricularia subulata L. | 31 images |
| Uvularia grandiflora Sm. | 230 images |
| Uvularia perfoliata L. | 69 images |
| Uvularia puberula Michx. | 9 images |
| Uvularia sessilifolia L. | 115 images |
| Vaccaria hispanica (Mill.) Rauschert | 1277 images |
| Vaccinium angustifolium Aiton | 624 images |
| Vaccinium arboreum Marshall | 152 images |
| Vaccinium caesariense Mack. | 1 images |
| Vaccinium cespitosum Michx. | 3 images |
| Vaccinium corymbosum L. | 2224 images |
| Vaccinium crassifolium Andrews | 2 images |
| Vaccinium deliciosum Piper | 11 images |
| Vaccinium erythrocarpum Michx. | 3 images |
| Vaccinium fuscatum Aiton | 32 images |
| Vaccinium geminiflorum Kunth | 4 images |
| Vaccinium hirsutum Buckley | 1 images |
| Vaccinium macrocarpon Aiton | 312 images |
| Vaccinium membranaceum Douglas ex Torr. | 54 images |
| Vaccinium myrsinites Lam. | 39 images |
| Vaccinium myrtilloides Michx. | 41 images |
| Vaccinium myrtillus L. | 5196 images |
| Vaccinium ovalifolium Sm. | 40 images |
| Vaccinium ovatum Pursh | 326 images |
| Vaccinium oxycoccos L. | 443 images |
| Vaccinium pallidum Aiton | 134 images |
| Vaccinium parvifolium Sm. | 226 images |
| Vaccinium scoparium Leiberg ex Coville | 23 images |
| Vaccinium stamineum L. | 154 images |
| Vaccinium uliginosum L. | 1445 images |
| Vaccinium virgatum Aiton | 18 images |
| Vaccinium vitis-idaea L. | 2625 images |
| Valeriana acutiloba Rydb. | 2 images |
| Valeriana californica A. Heller | 1 images |
| Valeriana dioica L. | 2874 images |
| Valeriana officinalis L. | 7469 images |
| Valeriana pauciflora Michx. | 50 images |
| Valeriana scandens L. | 1 images |
| Valeriana sitchensis Bong. | 79 images |
| Valerianella dentata (L.) Pollich | 191 images |
| Valerianella radiata (L.) Dufr. | 133 images |
| Vallesia glabra (Cav.) Link | 15 images |
| Vallisneria americana Michx. | 8 images |
| Vancouveria chrysantha Greene | 6 images |
| Vancouveria planipetala Calloni | 9 images |
| Vanilla inodora Schiede | 3 images |
| Vanilla pompona Schiede | 75 images |
| Velezia rigida L. | 86 images |
| Venegasia carpesioides DC. | 53 images |
| Ventenata dubia (Leers) Coss. | 10 images |
| Veratrum californicum Durand | 145 images |
| Veratrum insolitum Jeps. | 8 images |
| Veratrum viride Aiton | 578 images |
| Verbascum blattaria L. | 3138 images |
| Verbascum chaixii Vill. | 683 images |
| Verbascum densiflorum Bertol. | 6080 images |
| Verbascum lychnitis L. | 3368 images |
| Verbascum nigrum L. | 8846 images |
| Verbascum olympicum Boiss. | 13 images |
| Verbascum phlomoides L. | 2613 images |
| Verbascum phoeniceum L. | 658 images |
| Verbascum pulverulentum Vill. | 5939 images |
| Verbascum sinuatum L. | 5529 images |
| Verbascum speciosum Schrad. | 379 images |
| Verbascum thapsus L. | 16132 images |
| Verbascum virgatum Stokes | 1360 images |
| Verbena bonariensis L. | 8201 images |
| Verbena bracteata Cav. ex Lag. & Rodr. | 36 images |
| Verbena brasiliensis Vell. | 654 images |
| Verbena californica Moldenke | 6 images |
| Verbena canescens Kunth | 15 images |
| Verbena cloverae Moldenke | 3 images |
| Verbena halei Small | 177 images |
| Verbena hastata L. | 1010 images |
| Verbena lasiostachys Link | 131 images |
| Verbena litoralis Kunth | 98 images |
| Verbena menthifolia Benth. | 13 images |
| Verbena officinalis L. | 7170 images |
| Verbena perennis Wooton | 2 images |
| Verbena rigida Spreng. | 3335 images |
| Verbena simplex Lehm. | 66 images |
| Verbena stricta Vent. | 305 images |
| Verbena supina L. | 46 images |
| Verbena urticifolia L. | 725 images |
| Verbena xutha Lehm. | 4 images |
| Verbesina alternifolia (L.) Britton ex Kearney | 554 images |
| Verbesina encelioides (Cav.) Benth. & Hook. f. ex A. Gray | 1 images |
| Verbesina helianthoides Michx. | 21 images |
| Verbesina microptera DC. | 42 images |
| Verbesina virginica L. | 354 images |
| Verbesina walteri Shinners | 8 images |
| Vernonia angustifolia Michx. | 36 images |
| Vernonia arkansana DC. | 36 images |
| Vernonia baldwinii Torr. | 655 images |
| Vernonia blodgettii Small | 2 images |
| Vernonia fasciculata Michx. | 108 images |
| Vernonia gigantea (Walter) Trel. | 13 images |
| Vernonia marginata (Torr.) Raf. | 10 images |
| Vernonia missurica Raf. | 21 images |
| Vernonia noveboracensis (L.) Michx. | 588 images |
| Veronica agrestis L. | 1331 images |
| Veronica americana Schwein. ex Benth. | 107 images |
| Veronica anagallis-aquatica L. | 1450 images |
| Veronica arvensis L. | 2941 images |
| Veronica austriaca L. | 2178 images |
| Veronica beccabunga L. | 2412 images |
| Veronica campylopoda Boiss. | 1 images |
| Veronica chamaedrys L. | 16585 images |
| Veronica copelandii Eastw. | 9 images |
| Veronica cymbalaria Bodard | 1620 images |
| Veronica dillenii Crantz | 38 images |
| Veronica filiformis Sm. | 2938 images |
| Veronica hederifolia L. | 3104 images |
| Veronica officinalis L. | 3029 images |
| Veronica peregrina L. | 305 images |
| Veronica persica Poir. | 14071 images |
| Veronica polita Fr. | 2221 images |
| Veronica prostrata L. | 866 images |
| Veronica scutellata L. | 265 images |
| Veronica serpyllifolia L. | 3091 images |
| Veronica spicata L. | 3492 images |
| Veronica triphyllos L. | 147 images |
| Veronica verna L. | 170 images |
| Veronica wormskjoldii Roem. & Schult. | 5 images |
| Veronicastrum virginicum (L.) Farw. | 1058 images |
| Vetiveria zizanioides (L.) Nash | 1 images |
| Viburnum acerifolium L. | 602 images |
| Viburnum carlesii Hemsl. | 2183 images |
| Viburnum dentatum L. | 550 images |
| Viburnum dilatatum Thunb. | 107 images |
| Viburnum edule (Michx.) Raf. | 17 images |
| Viburnum ellipticum Hook. | 29 images |
| Viburnum lantana L. | 13302 images |
| Viburnum lantanoides Michx. | 622 images |
| Viburnum lentago L. | 252 images |
| Viburnum nudum L. | 227 images |
| Viburnum obovatum Walter | 23 images |
| Viburnum opulus L. | 18983 images |
| Viburnum plicatum Thunb. | 3955 images |
| Viburnum prunifolium L. | 421 images |
| Viburnum rafinesqueanum Schult. | 3 images |
| Viburnum recognitum Fernald | 58 images |
| Viburnum rhytidophyllum Hemsl. | 5494 images |
| Viburnum rufidulum Raf. | 231 images |
| Viburnum setigerum Hance | 18 images |
| Viburnum sieboldii Miq. | 56 images |
| Viburnum suspensum Lindl. | 80 images |
| Viburnum tinus L. | 21706 images |
| Vicia acutifolia Elliott | 4 images |
| Vicia americana Muhl. ex Willd. | 64 images |
| Vicia articulata Hornem. | 10 images |
| Vicia benghalensis L. | 564 images |
| Vicia bithynica (L.) L. | 560 images |
| Vicia caroliniana Walter | 49 images |
| Vicia cracca L. | 6854 images |
| Vicia disperma DC. | 168 images |
| Vicia faba L. | 5116 images |
| Vicia grandiflora Scop. | 356 images |
| Vicia hirsuta (L.) Gray | 1836 images |
| Vicia hybrida L. | 1432 images |
| Vicia lathyroides L. | 332 images |
| Vicia ludoviciana Nutt. | 27 images |
| Vicia lutea L. | 779 images |
| Vicia monantha Retz. | 314 images |
| Vicia narbonensis L. | 458 images |
| Vicia nigricans Hook. & Arn. | 16 images |
| Vicia pannonica Crantz | 491 images |
| Vicia peregrina L. | 239 images |
| Vicia sativa L. | 12811 images |
| Vicia sepium L. | 5825 images |
| Vicia tetrasperma (L.) Schreb. | 495 images |
| Vicia villosa Roth | 8262 images |
| Vigna luteola (Jacq.) Benth. | 210 images |
| Vigna mungo (L.) Hepper | 5 images |
| Vigna speciosa (Kunth) Verdc. | 55 images |
| Vigna unguiculata (L.) Walp. | 264 images |
| Viguiera dentata (Cav.) Spreng. | 107 images |
| Viguiera stenoloba S.F. Blake | 1 images |
| Vinca herbacea Waldst. & Kit. | 684 images |
| Vinca major L. | 15478 images |
| Vinca minor L. | 15096 images |
| Viola adunca Sm. | 176 images |
| Viola arvensis Murray | 4717 images |
| Viola bakeri Greene | 12 images |
| Viola bicolor Pursh | 194 images |
| Viola biflora L. | 995 images |
| Viola blanda Willd. | 223 images |
| Viola canadensis L. | 216 images |
| Viola cucullata Aiton | 21 images |
| Viola cuneata S. Watson | 1 images |
| Viola douglasii Steud. | 30 images |
| Viola flettii Piper | 3 images |
| Viola glabella Nutt. | 155 images |
| Viola hastata Michx. | 83 images |
| Viola hirsutula Brainerd | 4 images |
| Viola labradorica Schrank | 206 images |
| Viola lanceolata L. | 55 images |
| Viola lobata Benth. | 31 images |
| Viola nephrophylla Greene | 1 images |
| Viola nuttallii Pursh | 28 images |
| Viola odorata L. | 14543 images |
| Viola palustris L. | 935 images |
| Viola pedata L. | 165 images |
| Viola pinetorum Greene | 27 images |
| Viola pubescens Aiton | 714 images |
| Viola purpurea Kellogg | 113 images |
| Viola rotundifolia Michx. | 45 images |
| Viola sagittata Aiton | 97 images |
| Viola selkirkii Pursh ex Goldie | 8 images |
| Viola sempervirens Greene | 118 images |
| Viola septemloba Leconte | 14 images |
| Viola sheltonii Torr. | 23 images |
| Viola sororia Willd. | 1401 images |
| Viola striata Aiton | 249 images |
| Viola tricolor L. | 7747 images |
| Viola tripartita Elliott | 6 images |
| Viola umbraticola Kunth | 1 images |
| Viola villosa Walter | 8 images |
| Viola walteri House | 7 images |
| Viscum album L. | 2461 images |
| Vitex agnus-castus L. | 5988 images |
| Vitex negundo L. | 277 images |
| Vitex trifolia L. | 570 images |
| Vitis aestivalis Michx. | 1272 images |
| Vitis arizonica Engelm. | 17 images |
| Vitis californica Benth. | 100 images |
| Vitis girdiana Munson | 38 images |
| Vitis labrusca L. | 475 images |
| Vitis mustangensis Buckley | 194 images |
| Vitis riparia Michx. | 666 images |
| Vitis rotundifolia Michx. | 1421 images |
| Vitis rupestris Scheele | 37 images |
| Vitis vinifera L. | 16008 images |
| Vitis vulpina L. | 942 images |
| Vittaria lineata (L.) Sm. | 21 images |
| Vulpia bromoides (L.) Gray | 160 images |
| Vulpia ciliata Dumort. | 124 images |
| Vulpia microstachys (Nutt.) Munro | 18 images |
| Vulpia octoflora (Walter) Rydb. | 10 images |
| Waldsteinia fragarioides (Michx.) Tratt. | 34 images |
| Waltheria indica L. | 402 images |
| Watsonia meriana (L.) Mill. | 158 images |
| Wedelia acapulcensis Kunth | 18 images |
| Wedelia fruticosa Jacq. | 10 images |
| Weigela florida (Bunge) A. DC. | 4439 images |
| Whipplea modesta Torr. | 48 images |
| Wigandia urens (Ruiz & Pav.) Kunth | 169 images |
| Wislizenia refracta Engelm. | 2 images |
| Wisteria floribunda (Willd.) DC. | 2692 images |
| Wisteria frutescens (L.) Poir. | 770 images |
| Wisteria sinensis (Sims) DC. | 1556 images |
| Wolffia arrhiza (L.) Horkel ex Wimm. | 52 images |
| Wolffia globosa (Roxb.) Hartog & Plas | 1 images |
| Wolffiella gladiata (Hegelm.) Hegelm. | 1 images |
| Woodsia alpina (Bolton) Gray | 61 images |
| Woodsia obtusa (Spreng.) Torr. | 12 images |
| Woodwardia areolata (L.) T. Moore | 105 images |
| Woodwardia fimbriata Sm. | 190 images |
| Woodwardia virginica (L.) Sm. | 14 images |
| Wyethia helianthoides Nutt. | 10 images |
| Xanthisma texanum DC. | 13 images |
| Xanthium spinosum L. | 954 images |
| Xanthium strumarium L. | 4905 images |
| Xanthorhiza simplicissima Marshall | 55 images |
| Xanthosoma sagittifolium (L.) Schott | 1010 images |
| Xanthosoma violaceum Schott | 48 images |
| Xerophyllum asphodeloides (L.) Nutt. | 9 images |
| Xerophyllum tenax (Pursh) Nutt. | 126 images |
| Ximenia americana L. | 209 images |
| Xylococcus bicolor Nutt. | 59 images |
| Xylorhiza glabriuscula Nutt. | 3 images |
| Xylosma flexuosa (Kunth) Hemsl. | 17 images |
| Xyris caroliniana Walter | 8 images |
| Xyris difformis Chapm. | 2 images |
| Xyris jupicai Rich. | 346 images |
| Xyris laxifolia Mart. | 11 images |
| Xyris montana Ries | 3 images |
| Xyris tennesseensis Kral | 30 images |
| Xyris torta Sm. | 7 images |
| Yabea microcarpa (Hook. & Arn.) Koso-Pol. | 6 images |
| Yeatesia viridiflora (Nees) Small | 3 images |
| Yermo xanthocephalus Dorn | 4 images |
| Youngia japonica (L.) DC. | 1117 images |
| Yucca aloifolia L. | 3602 images |
| Yucca angustissima Engelm. ex Trel. | 78 images |
| Yucca arkansana Trel. | 60 images |
| Yucca baccata Torr. | 119 images |
| Yucca baileyi Wooton & Standl. | 11 images |
| Yucca brevifolia Engelm. | 527 images |
| Yucca campestris McKelvey | 16 images |
| Yucca constricta Buckley | 26 images |
| Yucca elata (Engelm.) Engelm. | 115 images |
| Yucca faxoniana (Trel.) Sarg. | 12 images |
| Yucca filamentosa L. | 4687 images |
| Yucca flaccida Haw. | 226 images |
| Yucca glauca Nutt. | 160 images |
| Yucca gloriosa L. | 7633 images |
| Yucca harrimaniae Trel. | 17 images |
| Yucca madrensis Gentry | 21 images |
| Yucca necopina Shinners | 27 images |
| Yucca pallida McKelvey | 78 images |
| Yucca reverchonii Trel. | 1 images |
| Yucca rupicola Scheele | 70 images |
| Yucca schidigera Roezl ex Ortgies | 271 images |
| Yucca thompsoniana Trel. | 37 images |
| Yucca treculeana Carrière | 10 images |
| Zamia pumila L. | 163 images |
| Zannichellia palustris L. | 56 images |
| Zantedeschia aethiopica (L.) Spreng. | 7852 images |
| Zantedeschia albomaculata (Hook.) Baill. | 1343 images |
| Zanthoxylum americanum Mill. | 208 images |
| Zanthoxylum clava-herculis L. | 146 images |
| Zanthoxylum fagara (L.) Sarg. | 173 images |
| Zanthoxylum martinicense (Lam.) DC. | 11 images |
| Zanthoxylum simulans Hance | 64 images |
| Zea mays L. | 23852 images |
| Zea mexicana (Schrad.) Kuntze | 2 images |
| Zelkova serrata (Thunb.) Makino | 1457 images |
| Zenobia pulverulenta (W. Bartram ex Willd.) Pollard | 40 images |
| Zephyranthes candida (Lindl.) Herb. | 924 images |
| Zephyranthes citrina Baker | 115 images |
| Zephyranthes rosea Lindl. | 1044 images |
| Zeuxine strateumatica (L.) Schltr. | 45 images |
| Zigadenus glaberrimus Michx. | 3 images |
| Zinnia angustifolia Kunth | 1116 images |
| Zinnia grandiflora Nutt. | 26 images |
| Zinnia peruviana (L.) L. | 2519 images |
| Zinnia violacea Cav. | 11 images |
| Zizania aquatica L. | 12 images |
| Zizia trifoliata (Michx.) Fernald | 6 images |
| Ziziphus mauritiana Lam. | 499 images |
| Ziziphus parryi Torr. | 11 images |
| Zornia reticulata Sm. | 72 images |
| Zostera marina L. | 120 images |
| Zoysia japonica Steud. | 9 images |
| Zoysia matrella (L.) Merr. | 32 images |
| Zygophyllum fabago L. | 524 images |