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Explore
Northwestern U.S.A.
Genera
Plants of Northwestern U.S.A.
Search
Families
Genera
Species
Filters
Filter by geolocation
1,102
genera
Sort by
A › Z
Z › A
Most observed
Least observed
Most illustrated
Least illustrated
Species count: High to low
Species count: Low to high
Abies
6
species
2098
1339
observations
Abronia
6
species
439
395
observations
Abutilon
2
species
3410
2705
observations
Acacia
1
species
6391
5085
observations
Acaena
1
species
96
80
observations
Acanthospermum
2
species
270
169
observations
Acer
5
species
20310
15374
observations
Achillea
4
species
42574
35104
observations
Achlys
1
species
98
88
observations
Achyrachaena
1
species
91
88
observations
Acmispon
3
species
31
23
observations
Aconitum
1
species
175
149
observations
Acorus
1
species
789
605
observations
Actaea
2
species
848
679
observations
Adelinia
1
species
366
352
observations
Adenocaulon
1
species
165
124
observations
Adiantum
3
species
3612
3129
observations
Adonis
1
species
808
536
observations
Adoxa
1
species
800
581
observations
Aegilops
1
species
63
38
observations
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Genera