Asteraceae

108 species

Acanthospermum australe (Loefl.) Kuntze

Common name

Spiny-bur

Genus

Acanthospermum

Family

141 78 observations

Acanthospermum hispidum DC.

Common name

Bristly starbur

Genus

Acanthospermum

Family

197 133 observations

Achillea millefolium L.

Common name

Common yarrow

Genus

Family

27,754 22,973 observations

Acmella uliginosa (Sw.) Cass.

Common name

Marsh para cress

Genus

Family

130 76 observations

Ageratina adenophora (Spreng.) R.M.King & H.Rob.

Common name

Crofton weed

Genus

Family

930 702 observations

Ageratina riparia (Regel) R.M.King & H.Rob.

Common name

Mistflower

Genus

Family

658 359 observations

Ageratum conyzoides L.

Common name

Billy goat weed

Genus

Family

868 651 observations

Ageratum houstonianum Mill.

Common name

Bluemink

Genus

Family

4,230 3,578 observations

Ambrosia artemisiifolia L.

Common name

Annual ragweed

Genus

Family

6,932 5,526 observations

Ambrosia psilostachya DC.

Common name

Dunbible-weed

Genus

Family

504 360 observations

Ambrosia trifida L.

Common name

Giant Ragweed

Genus

Family

1,442 1,195 observations

Anthemis cotula L.

Common name

Chamomile

Genus

Family

2,045 1,633 observations

Arctotheca calendula (L.) Levyns

Common name

Capeweed

Genus

Family

1,304 1,035 observations

Artemisia biennis Willd.

Common name

Biennial wormwood

Genus

Family

208 129 observations

Baccharis halimifolia L.

Common name

Eastern baccharis

Genus

Family

2,200 1,619 observations

Baccharis pilularis DC.

Common name

Coyote brush

Genus

Family

832 734 observations

Bidens alba (L.) DC.

Common name

Romerillo

Genus

Family

477 339 observations

Bidens frondosa L.

Common name

Devil's Beggarticks

Genus

Family

4,294 3,135 observations

Bidens pilosa L.

Common name

Spanish-needles

Genus

Family

3,936 2,908 observations

Carduus nutans L.

Common name

Musk thistle

Genus

Family

5,802 4,187 observations