Northwestern U.S.A. Plants of Northwestern U.S.A.Explore

• Families
• Genera
• Species 3 712

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Abies concolor (Gordon & Glend.) Lindl. ex Hildebr.

Least Concern

Colorado fir

615 370 Observations

Pinaceae

Abies grandis (Douglas ex D.Don) Lindl.

Least Concern

Giant Fir

567 356 Observations

Pinaceae

Abies lasiocarpa (Hook.) Nutt.

Least Concern

Alpine fir

165 126 Observations

Pinaceae

Abies magnifica A.Murray bis

Least Concern

California red fir

18 11 Observations

Pinaceae

Abies procera Rehder

Least Concern

Red fir

262 189 Observations

Pinaceae

Abronia ammophila Greene

Wyoming sand verbena

1 1 Observation

Nyctaginaceae

Abronia fragrans Nutt. ex Hook.

Fragrant sand-verbena

72 60 Observations

Nyctaginaceae

Abronia latifolia Eschsch.

Yellow sand-verbena

185 176 Observations

Nyctaginaceae

Abronia mellifera Douglas ex Hook.

White sand verbena

5 5 Observations

Nyctaginaceae

Abronia umbellata Lam.

Sand-verbena

151 136 Observations

Nyctaginaceae

Abutilon incanum (Link) Sweet

Least Concern

Pelotazo

18 16 Observations

Malvaceae

Abutilon theophrasti Medik.

Velvetleaf

2 892 2 276 Observations

Malvaceae

Acacia dealbata Link

Least Concern

Mimosa

5 622 4 454 Observations

Fabaceae

Acaena novae-zelandiae Kirk

New Zealand-bur

87 74 Observations

Rosaceae

Acanthospermum australe (Loefl.) Kuntze

Sheepbur

91 56 Observations

Asteraceae

Acanthospermum hispidum DC.

Bristly starbur

112 77 Observations

Asteraceae

Acer circinatum Pursh

Least Concern

Vine maple

368 309 Observations

Sapindaceae

Acer glabrum Torr.

Least Concern

Rocky Mountain maple

146 127 Observations

Sapindaceae

Acer grandidentatum Nutt.

Least Concern

Canyon maple

71 63 Observations

Sapindaceae

Acer macrophyllum Pursh

Least Concern

Bigleaf maple

1 082 917 Observations

Sapindaceae

Acer negundo L.

Least Concern

Boxelder

16 154 12 094 Observations

Sapindaceae

Achillea alpina L.

Chinese yarrow

18 12 Observations

Asteraceae

Achillea millefolium L.

Least Concern

Common yarrow

25 092 20 939 Observations

Asteraceae

Achillea nobilis L.

Noble yarrow

8 818 7 343 Observations

Asteraceae

Achillea ptarmica L.

Least Concern

Sneezewort

3 194 2 476 Observations

Asteraceae

Achlys triphylla DC.

Vanilla-leaf

73 67 Observations

Berberidaceae

Achyrachaena mollis Schauer

Blow wives

88 85 Observations

Asteraceae

Acmispon americanus (Nutt.) Rydb.

American Deerweed

26 18 Observations

Fabaceae

Aconitum columbianum Nutt.

Columbia aconite

171 146 Observations

Ranunculaceae

Acorus calamus L.

Least Concern

Sweet-flag

630 481 Observations

Acoraceae

Actaea elata (Nutt.) Prantl

Tall bugbane

23 15 Observations

Ranunculaceae

Actaea rubra (Aiton) Willd.

Red baneberry

704 590 Observations

Ranunculaceae

Adelinia grande (Douglas ex Lehm.) J.I.Cohen

Pacific hound's tongue

360 348 Observations

Boraginaceae

Adenocaulon bicolor Hook.

Trailplant

135 107 Observations

Asteraceae

Adiantum capillus-veneris L.

Least Concern

Maidenhair Fern

3 074 2 653 Observations

Pteridaceae

Adiantum jordanii Müll.Hal.

California Maidenhair Fern

162 160 Observations

Pteridaceae

Adonis aestivalis L.

Summer pheasant's-eye

753 493 Observations

Ranunculaceae

Adoxa moschatellina L.

Moschatel

764 552 Observations

Viburnaceae

Aegilops cylindrica Host

Least Concern

Jointed goat grass

56 32 Observations

Poaceae

Aegopodium podagraria L.

Ground Elder

11 418 9 178 Observations

Apiaceae

Aesculus californica (Spach) Nutt.

Least Concern

California buckeye

673 597 Observations

Sapindaceae

Aesculus hippocastanum L.

Vulnerable

Common Horse-chestnut

16 809 12 724 Observations

Sapindaceae

Aethusa cynapium L.

Fool's parsley

1 792 1 231 Observations

Apiaceae

Agalinis tenuifolia (Vahl) Raf.

Slender false foxglove

101 77 Observations

Orobanchaceae

Agastache foeniculum (Pursh) Kuntze

Anise hyssop

1 806 1 386 Observations

Lamiaceae

Agastache urticifolia (Benth.) Kuntze

Nettle-leaf horsemint

102 88 Observations

Lamiaceae

Ageratina herbacea (A.Gray) R.M.King & H.Rob.

Fragrant snakeroot

17 17 Observations

Asteraceae

Ageratina occidentalis (Hook.) R.M.King & H.Rob.

Western eupatorium

30 30 Observations

Asteraceae

Agoseris apargioides (Less.) Greene

Seaside agoseris

49 48 Observations

Asteraceae

Agoseris aurantiaca (Hook.) Greene

Mountain agoseris

46 44 Observations

Asteraceae

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