Southwestern U.S.A. Plants of Southwestern U.S.A.Explore

• Families
• Genera 242
• Species

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Acamptopappus

19 18 Observations

1 species

Achillea

30,730 25,347 Observations

2 species

Achyrachaena

88 85 Observations

1 species

Acourtia

44 43 Observations

3 species

Adenocaulon

141 110 Observations

1 species

Adenophyllum

28 24 Observations

2 species

Ageratina

703 543 Observations

5 species

Ageratum

567 439 Observations

2 species

Agnorhiza

8 8 Observations

1 species

Agoseris

259 249 Observations

6 species

Aldama

4 4 Observations

1 species

Ambrosia

6,356 5,074 Observations

9 species

Anaphalis

1,295 990 Observations

1 species

Anisocarpus

14 14 Observations

1 species

Antennaria

144 114 Observations

9 species

Anthemis

5,485 4,170 Observations

2 species

Aphanostephus

36 31 Observations

1 species

Arctium

21,247 16,797 Observations

2 species

Arctotheca

1,606 1,250 Observations

1 species

Arctotis

146 120 Observations

2 species

Argyranthemum

97 60 Observations

1 species

Arnica

385 312 Observations

13 species

Artemisia

16,298 13,341 Observations

21 species

Baccharis

853 750 Observations

5 species

Baileya

54 43 Observations

2 species

Balsamorhiza

57 47 Observations

3 species

Bebbia

65 61 Observations

1 species

Bellis

14,539 12,464 Observations

1 species

Berlandiera

69 54 Observations

1 species

Bidens

7,768 5,817 Observations

7 species

Blennosperma

65 65 Observations

2 species

Blepharipappus

23 22 Observations

1 species

Blepharizonia

24 24 Observations

2 species

Brickellia

146 134 Observations

12 species

Cacaliopsis

11 11 Observations

1 species

Calendula

21,432 17,783 Observations

2 species

Calycadenia

47 47 Observations

4 species

Calycoseris

37 37 Observations

2 species

Carduus

13,605 9,670 Observations

4 species

Carminatia

5 5 Observations

1 species

Carphochaete

6 6 Observations

1 species

Carthamus

2,487 1,856 Observations

2 species

Centaurea

61,210 48,345 Observations

18 species

Centromadia

20 17 Observations

2 species

Chaenactis

339 326 Observations

10 species

Chaetadelpha

7 7 Observations

1 species

Chamaechaenactis

4 4 Observations

1 species

Chamaemelum

2,694 2,180 Observations

2 species

Chloracantha

5 2 Observations

1 species

Chondrilla

1,929 1,243 Observations

1 species

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