Vascular Plants

Includes all flowering plants, conifers, ferns and fern-allies.

Browse by common name:
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z
Common names beginning with A:
Absinthe (Artemisia absinthium)
Distribution: Introduced in the northern half of the United States and southern Canada
Habitat: Weed of roadsides and waste places
Origin: Introduced
Flowers: July - September
White adder's-mouth (Malaxis monophyllos)
Origin: Native
Northern adder's-tongue (Ophioglossum pusillum)
Distribution: Alaska to California, and Montana east to Maine and Virginia
Habitat: Meadows and woods at moderate elevations in the mountains
Origin: Native
Alpine lake agoseris (Nothocalais alpestris)
Distribution: In the Cascades of Washington, mostly from Mt. Rainier south; Washington south to California.
Habitat: Open slopes and meadows from mid- to high elevations in the mountains.
Origin: Native
Flowers: June-August
Annual agoseris (Agoseris heterophylla)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia south to California, east to Montana and Arizona.
Habitat: Dry, open areas at low to mid-elevations.
Origin: Native
Flowers: April-July
Field agoseris (Agoseris ×agrestis)
Origin: Native
Large-flowered agoseris (Agoseris grandiflora)
Distribution: Distributed on both sides of the Cascades in Washington; British Columbia to California, east to Idaho and Nevada.
Habitat: Meadows and other open places in the lowlands and at moderate elevations in the mountains, often in dry areas.
Origin: Native
Flowers: May-August
Mountain agoseris (Agoseris monticola)
Distribution: East of the Cascades in Washington; Washington south to California, east to Nevada.
Habitat: Mesic meadows in the subalpine and alpine.
Origin: Native
Flowers: July-August
Orange agoseris (Agoseris aurantiaca)
Distribution: Both sides of the Cascades in Washington; Alaska to California, east to Wyoming and New Mexico.
Habitat: Mid- to high elevations in the mountains.
Origin: Native
Flowers: June-August
Pale agoseris (Agoseris glauca)
Distribution: Widely distributed throughout Washington; Alaska south to California, east to Michigan and New Mexico.
Habitat: Open forests and open areas, low to high elevations in the mountains.
Origin: Native
Flowers: May-August
Seaside agoseris (Agoseris apargioides)
Origin: Native
Flowers: June - August
Short-beaked agoseris (Agoseris glauca)
Distribution: Widely distributed throughout Washington; Alaska south to California, east to Michigan and New Mexico.
Habitat: Open forests and open areas, low to high elevations in the mountains.
Origin: Native
Flowers: May-August
Sierra Nevada agoseris (Agoseris monticola)
Distribution: East of the Cascades in Washington; Washington south to California, east to Nevada.
Habitat: Mesic meadows in the subalpine and alpine.
Origin: Native
Flowers: July-August
Spear leaved agoseris (Agoseris retrorsa)
Distribution: Occurring east of the Cascades crest in Washington; Washington south to California, east to Nevada, Utah, and Arizona.
Habitat: Shrub-steppe and ponderosa pine forest openings.
Origin: Native
Flowers: May-June
Tall agoseris (Agoseris ×elata)
Distribution: On both sides of the Cascades in Washington; Washington south to California.
Habitat: Meadows and open woods, from the valleys to moderate elevations in the mountains.
Origin: Native
Flowers: June-July
California alder (Alnus rhombifolia)
Distribution: Chiefly east of the Cascades crest in Washington; Washington south to California and Nevada, east to Idaho.
Habitat: Near streams at low elevations.
Origin: Native
Flowers: January-April
Green alder (Alnus viridis)
Distribution: Widely distributed throughout the mountainous areas of Washington; Alaska south to California, east across the northern half of North America to the Atlantic Coast.
Habitat: Moist areas, low to high elevations.
Origin: Native
Flowers: May-July
Mountain alder (Alnus incana)
Distribution: Occurring east of the Cascades crest in Washington; Alaska south to New Mexico, also in the north-central and northeastern region of North America.
Habitat: Moist places, streamside, low to high elevations.
Origin: Native
Flowers: March-May
Mountain alder (Alnus viridis)
Distribution: Widely distributed throughout the mountainous areas of Washington; Alaska south to California, east across the northern half of North America to the Atlantic Coast.
Habitat: Moist areas, low to high elevations.
Origin: Native
Flowers: May-July
Oregon alder (Alnus rubra)
Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska south to California, disjunct to the east in northern Idaho.
Habitat: Moist areas at low elevations.
Origin: Native
Flowers: March-April
Red alder (Alnus rubra)
Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska south to California, disjunct to the east in northern Idaho.
Habitat: Moist areas at low elevations.
Origin: Native
Flowers: March-April
White alder (Alnus rhombifolia)
Distribution: Chiefly east of the Cascades crest in Washington; Washington south to California and Nevada, east to Idaho.
Habitat: Near streams at low elevations.
Origin: Native
Flowers: January-April
Heart-leaved Alexanders (Zizia aptera)
Distribution: Eastern Washington and northwest Oregon, east to central and eastern United States.
Habitat: Moist or wet meadows, stream banks, and moist low ground; tolerant of alkali.
Origin: Native
Flowers: May - July
Alfalfa (Medicago sativa)
Distribution: Introduced as a forage crop in the temperate regions of the world
Habitat: Near cultivated fields, roadsides, often on dry ground
Origin: Introduced
Flowers: June - October
Small alison (Alyssum alyssoides)
Distribution: Chiefly east of the Cascades in Washington; widely distributed throughout North America except for parts of southeastern U.S.
Habitat: Dry, waste areas, becoming common in the shrub-steppe of eastern Washington.
Origin: Introduced from Eurasia
Flowers: May-July
Sweet alison (Lobularia maritima)
Distribution: Occurring in scattered locations across Washington; British Columbia south to Texas; also occurring throughout central and eastern North America.
Habitat: Escaping from cultivation to roadsides, pastures, and other disturbed areas, often where moist.
Origin: Introduced from the western Mediterranean
Flowers: April-August
Alkali-mallow (Malvella leprosa)
Origin: Native
Flowers: June - September
Alkali-sacaton (Sporobolus airoides)
Origin: Native
Flowers: July - August
Coast alkaligrass (Puccinellia maritima)
Origin: Introduced
Weeping alkaligrass (Puccinellia distans)
Distribution: Occurring east of the Cascades in Washington; North-central British Columbia south, chiefly east of the Cascades, to California, east through most of Canada and to the east base of the Rockies.
Habitat: Moist soil, especially where alkaline.
Origin: Introduced
Flowers: June-August
Common alkanet (Anchusa officinalis)
Distribution: Occurring in scattered locations throughout Washington, but mostly east of the Cascades; occurring throught much of western North America, the upper Midwest, and northeastern U.S.
Habitat: Disturbed areas.
Origin: Introduced from Mediterranean region
Flowers: May-July
Green alkanet (Pentaglottis sempervirens)
Distribution: Occurring in lowland western Washington; British Columbia south to California.
Habitat: Disturbed soil in shaded areas.
Origin: Introduced from sw Europe
Flowers: April-July
Italian alkanet (Anchusa azurea)
Distribution: Scattered localities in Washington; British Columbia south to California, scattered localities east of the Cascades to the Atlantic Coast.
Habitat: Disturbed soil.
Origin: Introduced from Old World
Flowers: June-August
Allheal (Valeriana officinalis)
Origin: Introduced from Europe
Almond (Prunus dulcis)
Distribution: Escaped from cultivation sporadically in western North America. Native to Asia.
Habitat: Disturbed areas, riparian zones.
Origin: Introduced
Flowers: March-May
Alpine-azalea (Kalmia procumbens)
Origin: Native
Dwarf alpinegold (Hulsea nana)
Distribution: Known from the Mt. Rainier and Mt. Adams area in Washington; Washington south to California.
Habitat: Generally around volcanic mountains above timberline.
Origin: Native
Flowers: July-September
Poker alum-root (Heuchera cylindrica)
Distribution: East of the Cascade summits, British Columbia to California, east to Alberta and Wyoming
Habitat: Rocky soil, cliffs and talus slopes, foothills to mid-elevations in the mountains
Origin: Native
Flowers: April - August
Alpine alumroot (Heuchera glabra)
Distribution: In the Cascades, Olympics, and Selkirks and m ountains in Washington; Alaska south to Mt. Hood, Oregon.
Habitat: Streambanks and moist rocks, from the coast to above timberline
Origin: Native
Flowers: June-August
Gooseberry-leaved alumroot (Heuchera grossulariifolia)
Distribution: Southwest Montana and central Idaho to the Wallowa Mountains of northeast Oreagon, and the Columbia River Gorge of Washington and Oregon.
Habitat: Grassy canyons and rocky canyon walls to alpine scree and talus slopes.
Origin: Native
Flowers: May - Early August
Green-flowered alumroot (Heuchera chlorantha)
Distribution: West of the Cascade summit, Queen Charlotte Island, British Columbia south to Douglas County, Oregon, up the Columbia River Gorge to the east base of the Cascades, then south along the Oregon Cascades to Klamath County, OR.
Habitat: Gravelly prairies and wooded hillsides.
Origin: Native
Flowers: May - August
Lava alumroot (Heuchera cylindrica)
Distribution: East of the Cascade summits, British Columbia to California, east to Alberta and Wyoming
Habitat: Rocky soil, cliffs and talus slopes, foothills to mid-elevations in the mountains
Origin: Native
Flowers: April - August
Meadow alumroot (Heuchera chlorantha)
Distribution: West of the Cascade summit, Queen Charlotte Island, British Columbia south to Douglas County, Oregon, up the Columbia River Gorge to the east base of the Cascades, then south along the Oregon Cascades to Klamath County, OR.
Habitat: Gravelly prairies and wooded hillsides.
Origin: Native
Flowers: May - August
Roundleaf alumroot (Heuchera cylindrica)
Distribution: East of the Cascade summits, British Columbia to California, east to Alberta and Wyoming
Habitat: Rocky soil, cliffs and talus slopes, foothills to mid-elevations in the mountains
Origin: Native
Flowers: April - August
Smallflower alumroot (Heuchera micrantha)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to Idaho.
Habitat: Gravelly stream banks, rock crevices and talus slopes, sea level to subalpine.
Origin: Native
Flowers: May-August
Smooth alumroot (Heuchera glabra)
Distribution: In the Cascades, Olympics, and Selkirks and m ountains in Washington; Alaska south to Mt. Hood, Oregon.
Habitat: Streambanks and moist rocks, from the coast to above timberline
Origin: Native
Flowers: June-August
Tall alumroot (Heuchera chlorantha)
Distribution: West of the Cascade summit, Queen Charlotte Island, British Columbia south to Douglas County, Oregon, up the Columbia River Gorge to the east base of the Cascades, then south along the Oregon Cascades to Klamath County, OR.
Habitat: Gravelly prairies and wooded hillsides.
Origin: Native
Flowers: May - August
Desert alyssum (Alyssum desertorum)
Distribution: East of the Cascades in Washington; widely distributed throughout central and western North America.
Habitat: Dry, open ground, often where disturbed.
Origin: Introduced from Eurasia
Flowers: May-June
Hoary alyssum (Berteroa incana)
Distribution: In scattered locations east of the Cascades in Washington; widely distributed throughout much of North America.
Habitat: Uncommon in dry, waste places in most of the Pacific Northwest; common in northeast Washington.
Origin: Introduced from Europe
Flowers: May-August
Sweet alyssum (Lobularia maritima)
Distribution: Occurring in scattered locations across Washington; British Columbia south to Texas; also occurring throughout central and eastern North America.
Habitat: Escaping from cultivation to roadsides, pastures, and other disturbed areas, often where moist.
Origin: Introduced from the western Mediterranean
Flowers: April-August
Argentina amaranth (Amaranthus deflexus)
Origin: Introduced
Blood amaranth (Amaranthus cruentus)
Origin: Probably introduced from cultivation in Central America
California amaranth (Amaranthus californicus)
Origin: Native
Flowers: July - October
Caterpillar amaranth (Amaranthus cruentus)
Origin: Probably introduced from cultivation in Central America
Green amaranth (Amaranthus hybridus)
Distribution: Found in much of the United States, but uncommon in the Pacific Northwest; collected in Whitman County
Habitat: Dry areas, disturbed sites, agricultural fields.
Origin: Introduced from riparian zones in eastern North America
Flowers: July - September
Green amaranth (Amaranthus powellii)
Distribution: Introduced in much of the United States; common in the Pacific Northwest
Habitat: Disturbed areas
Origin: Introduced from the southwestern United States and Mexico
Flowers: July - October
Hybrid amaranth (Amaranthus hybridus)
Distribution: Found in much of the United States, but uncommon in the Pacific Northwest; collected in Whitman County
Habitat: Dry areas, disturbed sites, agricultural fields.
Origin: Introduced from riparian zones in eastern North America
Flowers: July - September
Livid amaranth (Amaranthus blitum)
Origin: Introduced from the tropics
Pale amaranth (Amaranthus blitum)
Origin: Introduced from the tropics
Powell's amaranth (Amaranthus powellii)
Distribution: Introduced in much of the United States; common in the Pacific Northwest
Habitat: Disturbed areas
Origin: Introduced from the southwestern United States and Mexico
Flowers: July - October
Purple amaranth (Amaranthus cruentus)
Origin: Probably introduced from cultivation in Central America
Smooth amaranth (Amaranthus hybridus)
Distribution: Found in much of the United States, but uncommon in the Pacific Northwest; collected in Whitman County
Habitat: Dry areas, disturbed sites, agricultural fields.
Origin: Introduced from riparian zones in eastern North America
Flowers: July - September
Western ammania (Ammannia robusta)
Distribution: Occurring east of the Cascades crest in Washington; widely distributed from the tropics to much of North America.
Habitat: Wet places, often where alkaline.
Origin: Native
Flowers: May-june
Seaside amsinckia (Amsinckia spectabilis)
Distribution: Occurring west of the Cascades crest in Washington; British Columbia south to California.
Habitat: Coastal dunes or sandy bluffs.
Origin: Native
Flowers: May-July
Cliff anemone (Anemone multifida)
Distribution: Alaska to California, east to Nebraska and New Mexico in the west, and across the northern tier of states to Maine
Habitat: From the foothills to high elevations in the mountains
Origin: Native
Flowers: May - August
Drummond's anemone (Anemone drummondii)
Distribution: Occurring in the Olympic and Cascade Mountains in Washington; Alaska south to California, east to Montana.
Habitat: Alpine and subalpine regions.
Origin: Native
Flowers: June-August
Little mountain anemone (Anemone lyallii)
Distribution: Chiefly west of the Cascades but occasionally on the east slope in Washington; British Columbia to California.
Habitat: Open prairies at low elevations to subalpine ridges.
Origin: Native
Flowers: March-July
Lyall's anemone (Anemone lyallii)
Distribution: Chiefly west of the Cascades but occasionally on the east slope in Washington; British Columbia to California.
Habitat: Open prairies at low elevations to subalpine ridges.
Origin: Native
Flowers: March-July
Northern anemone (Anemone parviflora)
Distribution: Occurring in scattered locaions in Washington; Alaska south to the Cascades of northern Washington, east to the Atlantic Coast, south in the Rocky Mountains to Colorado.
Habitat: Mountain meadows and subalpine stream banks.
Origin: Native
Flowers: May-August
Oregon anemone (Anemone oregana)
Distribution: In Washington occurring on the Olympic Peninsula and chiefly east of the Cascades crest; Chelan County, Washington south to northern California.
Habitat: Moist, open woods, moderate to mid-elevations in the mountains.
Origin: Native
Flowers: March-June
Pacific anemone (Anemone multifida)
Distribution: Alaska to California, east to Nebraska and New Mexico in the west, and across the northern tier of states to Maine
Habitat: From the foothills to high elevations in the mountains
Origin: Native
Flowers: May - August
Piper's anemone (Anemone piperi)
Distribution: East of the Cascades in Washington;Washington to northeast Oregon east to Idaho and western Montana.
Habitat: Shady woods at moderate to mid-elevations in the mountains.
Origin: Native
Flowers: April-August
Small-flowered anemone (Anemone parviflora)
Distribution: Occurring in scattered locaions in Washington; Alaska south to the Cascades of northern Washington, east to the Atlantic Coast, south in the Rocky Mountains to Colorado.
Habitat: Mountain meadows and subalpine stream banks.
Origin: Native
Flowers: May-August
Threeleaf anemone (Anemone deltoidea)
Distribution: On both sides of the Cascades in the southern half of Washington; Washington south to California.
Habitat: Moist to drier areas in open to deep woods at low to moderate elevations.
Origin: Native
Flowers: April-May
Angel's-trumpet (Datura innoxia)
Origin: Introduced
Canby's angelica (Angelica canbyi)
Origin: Native
Flowers: July - September
Henderson's angelica (Angelica hendersonii)
Distribution: Coastal Washington; south to California.
Habitat: Coastal bluffs and sand dunes.
Origin: Native
Flowers: July-August
Kneeling angelica (Angelica genuflexa)
Distribution: Chiefly west of the Cascades in Washington; Alaska south to California, east in British Columbia to the Selkirk Mountains.
Habitat: Stream banks, wet meadows and other moist places, moderate to mid-elevations in the mountains.
Origin: Native
Flowers: July-August
Lyall's angelica (Angelica arguta)
Distribution: Both sides of the Cascades in Washington; British Columbia south to California, east to Alberta and Utah.
Habitat: Stream banks, wet meadows, marshes and bottomlands, from the foothills and valleys to moderate elevations in the mountains.
Origin: Native
Flowers: June-August
Seacoast angelica (Angelica lucida)
Distribution: West of the Cascades in Washington; margin of the Pacific Basin, from the Kuril Islands to California.
Habitat: Coastal bluffs and beaches in the Pacific Northwest, occasionally inland elsewhere.
Origin: Native
Flowers: July-August
Sharptooth angelica (Angelica arguta)
Distribution: Both sides of the Cascades in Washington; British Columbia south to California, east to Alberta and Utah.
Habitat: Stream banks, wet meadows, marshes and bottomlands, from the foothills and valleys to moderate elevations in the mountains.
Origin: Native
Flowers: June-August
Woolly angelica (Angelica hendersonii)
Distribution: Coastal Washington; south to California.
Habitat: Coastal bluffs and sand dunes.
Origin: Native
Flowers: July-August
Rocky Mountain ankle-aster (Ionactis stenomeres)
Distribution: Southeast British Columbia and northeast Washington, and adjacent Idaho and Montana.
Habitat: Open hillsides and forest openings, moderate to fairly high elevations in the mountains.
Origin: Native
Flowers: Late June - Early September
Queen Anne's-lace (Daucus carota)
Distribution: Widely distributed throughout Washington; Widely distributed throughout North America.
Habitat: Roadsides, ditchbanks, somewhat moist waste land.
Origin: Introduced; native to Europe
Flowers: June-August
Sweet Annie (Artemisia annua)
Distribution: Native of Eurasia, naturalized in eastern United States, rare in the Pacific Northwest.
Habitat: Fields and waste places.
Origin: Introduced
Flowers: August - October
Antelope-brush (Purshia tridentata)
Distribution: Widely distributed east of the Cascades crest in Washington; British Columbia south to California, east to Montana, Colorado and New Mexico.
Habitat: Sagebrush desert and shrub-steppe to ponderosa pine forests.
Origin: Native
Flowers: April-June
St. Anthony's-turnip (Ranunculus bulbosus)
Origin: Introduced from Europe
Flowers: May - June
Apargidium (Microseris borealis)
Distribution: Occurring west of the Cascades crest in Washington; southern Alaska south to northern California.
Habitat: Sphagnum bogs and wet meadows in the mountains.
Origin: Native
Flowers: June-August
Apple (Malus pumila)
Distribution: Occurring on both sides of the Cascades crest in Washington; widely distributed throughout much of North America.
Habitat: Forested edges and openings, fields, roadsides, abandoned homesteads, and other disturbed areas.
Origin: Introduced
Flowers: April-June
Cultivated apple (Malus pumila)
Distribution: Occurring on both sides of the Cascades crest in Washington; widely distributed throughout much of North America.
Habitat: Forested edges and openings, fields, roadsides, abandoned homesteads, and other disturbed areas.
Origin: Introduced
Flowers: April-June
Dawson apple (Malus ×dawsoniana)
Distribution: Occurring west of the Cascades crest in Washington; Washington south to Oregon.
Habitat: Fields, roadsides, wastelots, and abandoned homesteads.
Origin: Introduced
Flowers: April-May
Sacred thorn apple (Datura wrightii)
Distribution: Scattered locations across Washington; California east across the U.S. to New England.
Habitat: Disturbed, dry, open areas, roadsides, and waste places.
Origin: Introduced from Mexico
Flowers: June-August
Apple of Peru (Nicandra physalodes)
Origin: Introduced
Apricot (Prunus armeniaca)
Origin: Introduced
Yellow archangel (Lamiastrum galeobdolon)
Distribution: West of the Cascades in Washington; California and scattered localities in eastern U.S.
Habitat: Introduced as an ornamental, escaping in lowland forest understory and disturbed soil in shaded areas.
Origin: Introduced from Eurasia
Flowers: May-June
Broad leaved arnica (Arnica latifolia)
Distribution: Both sides of the Cascades in Washington; Alaska south through Washington.
Habitat: Common in open forests and open, rocky areas at mid- to high elevations in the mountains.
Origin: Native
Flowers: June-August
Bunch arnica (Arnica sororia)
Distribution: Chiefly east of the Cascades, British Columbia to California, east to Wyoming.
Habitat: Open, often rather dry places, but usually vernally moist, in the foothills and at moderate elevations in the mountains.
Origin: Native
Flowers: May - July
Clasping arnica (Arnica lanceolata)
Distribution: Cascades Mountains to the coast in Washington; Alaska to California, east to western Montana.
Habitat: Streambanks and moist woods at moderate to mid-elevations in the mountains.
Origin: Native
Flowers: June-August
Cordilleran arnica (Arnica mollis)
Distribution: In the mountains from British Columbia to California, east to Alberta and Colorado
Habitat: Frequent in moist meadows at mid- to high elevations in the mountains
Origin: Native
Flowers: June - September
Hairy arnica (Arnica mollis)
Distribution: In the mountains from British Columbia to California, east to Alberta and Colorado
Habitat: Frequent in moist meadows at mid- to high elevations in the mountains
Origin: Native
Flowers: June - September
Heart leaf arnica (Arnica cordifolia)
Distribution: Pacific Northwest, including southern British Columbia, and east into the Rocky Mountains
Habitat: Moderately dry, open forests from fairly low (where common) to sub-alpine
Origin: Native
Flowers: April - July
Hillside arnica (Arnica fulgens)
Distribution: British Columbia to California, uncommon east to North Dakota; east of the Cascades in Washington and Oregon
Habitat: Open places from the foothills to moderate elevations in the mountains
Origin: Native
Flowers: May - July
Leafy arnica (Arnica chamissonis)
Distribution: Occurring in the Cascades and northeastern corner of Washington; Alaska south to California, east across Canada and to the Rockies in the U.S.
Habitat: Meadows and wet places at moderate elevations.
Origin: Native
Flowers: June-September
Longleaf arnica (Arnica longifolia)
Distribution: Southern Alberta south to Washington, Colorado and California.
Habitat: Rocky soil in seeps or springs, cliffs, or riverbanks, at moderate to high elevations in the mountains.
Origin: Native
Flowers: July - September
Meadow arnica (Arnica chamissonis)
Distribution: Occurring in the Cascades and northeastern corner of Washington; Alaska south to California, east across Canada and to the Rockies in the U.S.
Habitat: Meadows and wet places at moderate elevations.
Origin: Native
Flowers: June-September
Mountain arnica (Arnica latifolia)
Distribution: Both sides of the Cascades in Washington; Alaska south through Washington.
Habitat: Common in open forests and open, rocky areas at mid- to high elevations in the mountains.
Origin: Native
Flowers: June-August
Narrowleaf arnica (Arnica chamissonis)
Distribution: Occurring in the Cascades and northeastern corner of Washington; Alaska south to California, east across Canada and to the Rockies in the U.S.
Habitat: Meadows and wet places at moderate elevations.
Origin: Native
Flowers: June-September
Nevada arnica (Arnica nevadensis)
Distribution: Cascade and Olympic Mountains of Washington, south to California; rare in our range.
Habitat: Open, rocky slopes at high elevations in the mountains.
Origin: Native
Flowers: July - August
Orange arnica (Arnica fulgens)
Distribution: British Columbia to California, uncommon east to North Dakota; east of the Cascades in Washington and Oregon
Habitat: Open places from the foothills to moderate elevations in the mountains
Origin: Native
Flowers: May - July
Parry's arnica (Arnica parryi)
Distribution: In the mountains from British Columbia to California, east to Alberta and Colorado
Habitat: Open woods and meadows, moderate to mid-elevations in the mountains
Origin: Native
Flowers: July - August
Rydberg's arnica (Arnica rydbergii)
Distribution: British Columbia south to northern California, east to Alberta and Colorado.
Habitat: Dry meadows and open slopes at high elevations in the mountains.
Origin: Native
Flowers: July - August
Seep spring arnica (Arnica longifolia)
Distribution: Southern Alberta south to Washington, Colorado and California.
Habitat: Rocky soil in seeps or springs, cliffs, or riverbanks, at moderate to high elevations in the mountains.
Origin: Native
Flowers: July - September
Sierra arnica (Arnica nevadensis)
Distribution: Cascade and Olympic Mountains of Washington, south to California; rare in our range.
Habitat: Open, rocky slopes at high elevations in the mountains.
Origin: Native
Flowers: July - August
Silvery arnica (Arnica chamissonis)
Distribution: Occurring in the Cascades and northeastern corner of Washington; Alaska south to California, east across Canada and to the Rockies in the U.S.
Habitat: Meadows and wet places at moderate elevations.
Origin: Native
Flowers: June-September
Slender arnica (Arnica gracilis)
Distribution: Occurring in mountainous areas throughout Washington; British Columbia south to California, east to Colorado and Utah.
Habitat: Rocky places, usually at rather high elevations in the mountains.
Origin: Native
Flowers: June-July
Sticky arnica (Arnica ovata)
Distribution: Both sides of the Cascades in Washington; Alaska south to California, east to Montana and Utah.
Habitat: Rocky places at moderate to high elevations in the mountains.
Origin: Native
Flowers: July-September
Sticky leaf arnica (Arnica ovata)
Distribution: Both sides of the Cascades in Washington; Alaska south to California, east to Montana and Utah.
Habitat: Rocky places at moderate to high elevations in the mountains.
Origin: Native
Flowers: July-September
Stream bank arnica (Arnica lanceolata)
Distribution: Cascades Mountains to the coast in Washington; Alaska to California, east to western Montana.
Habitat: Streambanks and moist woods at moderate to mid-elevations in the mountains.
Origin: Native
Flowers: June-August
Subalpine arnica (Arnica rydbergii)
Distribution: British Columbia south to northern California, east to Alberta and Colorado.
Habitat: Dry meadows and open slopes at high elevations in the mountains.
Origin: Native
Flowers: July - August
Twin arnica (Arnica sororia)
Distribution: Chiefly east of the Cascades, British Columbia to California, east to Wyoming.
Habitat: Open, often rather dry places, but usually vernally moist, in the foothills and at moderate elevations in the mountains.
Origin: Native
Flowers: May - July
Graceful arrow-grass (Triglochin concinna)
Origin: Native
Marsh arrow-grass (Triglochin palustris)
Origin: Native
Flowers: June - August
Seaside arrow-grass (Triglochin maritima)
Distribution: Widely distributed throughout much of Washington; Alaska south to California, east to the Rocky Mountains, then mostly across northern U.S. and southern Canada to the Atlantic Coast.
Habitat: Marsh to moist, gravelly areas, mostly were saline or alkaline.
Origin: Native
Flowers: May-August
Arumleaf arrowhead (Sagittaria cuneata)
Distribution: East of the Cascades in Washington; British Columbia south to California, east to New York.
Habitat: Ponds, lake shores and ditches.
Origin: Native
Flowers: June-August
Awl-leaf arrowhead (Sagittaria subulata)
Origin: Introduced from tidewaters in eastern North America
Common arrowhead (Sagittaria latifolia)
Distribution: Occurring on both sides of the Cascades in Washington; Vancouver Island, British Columbia south to central California; primary distribution in central and eastern North America.
Habitat: Ditches, ponds, lakes, swampy areas.
Origin: Native
Flowers: July-September
Delta arrowhead (Sagittaria platyphylla)
Distribution: Known from the Puget Sound lowlands in Washington; south-central U.S., and in scattered locations in central and northeastern U.S.
Habitat: Pond and lake margins.
Origin: Introduced
Flowers: June-August
Grassy arrowhead (Sagittaria graminea)
Distribution: Occurring west of the Cascades in Washington; primary distribution is east of the Mississippi River.
Habitat: Wetlands, ponds, and lakes
Origin: Introduced
Flowers: June-August
Northern arrowhead (Sagittaria cuneata)
Distribution: East of the Cascades in Washington; British Columbia south to California, east to New York.
Habitat: Ponds, lake shores and ditches.
Origin: Native
Flowers: June-August
Sessile-fruited arrowhead (Sagittaria rigida)
Distribution: Occurring in lowland areas west of the Cascades crest in Washington; California; central U.S. and southern Canada east to northeastern U.S. and Canada; scattered locations elsewhere in U.S. and Canada.
Habitat: Pond and lake margins.
Origin: Introduced from eastern North America
Flowers: June-August
Jerusalem artichoke (Helianthus tuberosus)
Distribution: Introdued and widespread in eastern United States; uncommon in the Pacific Northwest.
Habitat: Moist soil and waste places.
Origin: Introduced
Flowers: August - October
Arrow arum (Peltandra virginica)
Origin: Introduced
Green ash (Fraxinus pennsylvanica)
Distribution: Occurring chiefly east of the Cascades crest in Washington; widely distributed throughout much of North America except some West Coast states and provinces.
Habitat: Riparian zones where soil is moist but not saturated.
Origin: Introduced
Flowers: April-June
Greene's mountain ash (Sorbus scopulina)
Distribution: Alaska south to California, east to the Dakotas and Colorado.
Habitat: Open areas, from the foothils to sub-alpine.
Origin: Native
Flowers: May - Early July
Oregon ash (Fraxinus latifolia)
Distribution: West of the Cascades in Washington; British Columbia south to California.
Habitat: Deep, fertile, generally moist soil along the coast and prairie areas.
Origin: Native
Flowers: March-May
Asparagus (Asparagus officinalis)
Distribution: Introduced throughout the United States
Habitat: Garden escape, often of roadsides.
Origin: Introduced from Eurasia
Flowers: July - August
Quaking aspen (Populus tremuloides)
Distribution: Broadly distributed in Washington, but chiefly east of the Cascades in Washington; Alaska to California, east to Labrador and New Jersey.
Habitat: Moist areas, low to fairly high elevations in the mountains
Origin: Native
Flowers: April-June
Alkali American aster (Symphyotrichum ciliatum)
Distribution: Occurring east of the Cascades in northern Washington; British Columbia south to northern Washington, east to Minnesota.
Habitat: Moist, usually saline ground, often along the shores of lakes and ponds.
Origin: Native
Flowers: August-September
Alkali aster (Symphyotrichum frondosum)
Distribution: Eastern Washington, south to California and east to Wyoming and Utah.
Habitat: Moist, usually saline soil, often along the shores of lakes and ponds, or in vernally moist, alkaline bottoms.
Origin: Native
Flowers: August - October
Alpine leafybract aster (Symphyotrichum foliaceum)
Distribution: Alaska to California, east to Colorado
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Amethyst aster (Symphyotrichum ×amethystinum)
Origin: Introduced
Arctic aster (Eurybia merita)
Origin: Native
Flowers: July - August
Arctic aster (Eurybia sibirica)
Distribution: Circumboreal; found in northern Rocky mountains, Pacific Northwest, and northward through Alberta, British Columbia, Yukon and Northwest Territories, and Alaska.
Habitat: In Washington, this species is found in alpine and subalpine meadows.
Origin: Native
Flowers: July - August
Behring wood aster (Eurybia merita)
Origin: Native
Flowers: July - August
Behring wood aster (Eurybia sibirica)
Distribution: Circumboreal; found in northern Rocky mountains, Pacific Northwest, and northward through Alberta, British Columbia, Yukon and Northwest Territories, and Alaska.
Habitat: In Washington, this species is found in alpine and subalpine meadows.
Origin: Native
Flowers: July - August
Bracted aster (Symphyotrichum bracteolatum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Sasketchewan and Rocky Mountain states.
Habitat: Moist to wet sunny places, wet thickets, along streams and ditches
Origin: Native
Flowers: July-September
Canby's leafybract aster (Symphyotrichum foliaceum)
Distribution: Alaska to California, east to Colorado
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Cascade aster (Eucephalus ledophyllus)
Distribution: Cascade Mountains from northern Washington to southern Oregon.
Habitat: Meadows and open woods, mid-elevations up to timberline in the mountains.
Origin: Native
Flowers: July-September
Columbian white-topped aster (Sericocarpus rigidus)
Distribution: West of the Cascades from southern Vancouver Island, BC, to southwest Oregon, but chiefly in Washington.
Habitat: Prairies and open areas at low elevations.
Origin: Native
Flowers: July - August
Columbian whitetop aster (Sericocarpus rigidus)
Distribution: West of the Cascades from southern Vancouver Island, BC, to southwest Oregon, but chiefly in Washington.
Habitat: Prairies and open areas at low elevations.
Origin: Native
Flowers: July - August
Common California aster (Symphyotrichum chilense)
Distribution: Both sides of the Cascades, Washington to California, east to Montana and New Mexico.
Habitat: Dry, open places in the valleys and plains, to moderate elevations in the mountains.
Origin: Native
Flowers: July-October
Cusick's American aster (Symphyotrichum foliaceum)
Distribution: Alaska to California, east to Colorado
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Cusick's aster (Symphyotrichum foliaceum)
Distribution: Alaska to California, east to Colorado
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Douglas' aster (Symphyotrichum subspicatum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to Alberta, Montana and Idaho.
Habitat: Moist woods, streambanks and seashores.
Origin: Native
Flowers: July-September
Douglas's aster (Symphyotrichum subspicatum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to Alberta, Montana and Idaho.
Habitat: Moist woods, streambanks and seashores.
Origin: Native
Flowers: July-September
Eaton's aster (Symphyotrichum bracteolatum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Sasketchewan and Rocky Mountain states.
Habitat: Moist to wet sunny places, wet thickets, along streams and ditches
Origin: Native
Flowers: July-September
Engelmann's aster (Eucephalus engelmannii)
Distribution: Distributed on both sides of the Cascades in Washington; British Columbia south to Nevada, east to Alberta and south to Colorado.
Habitat: Open woods, foothills to high elevations in the mountains.
Origin: Native
Flowers: June-September
Few flowered aster (Canadanthus modestus)
Distribution: Widely distributed throughout mountainous areas of Washington; British Columbia south to Oregon, east to Michigan.
Habitat: Streambanks and moist woods at moderate to mid-elevations in the mountains.
Origin: Native
Flowers: July-September
Geyer's aster (Symphyotrichum laeve)
Distribution: Eastern British Columbia, eastern Washington and northeast Oregon, east to Maine and Georgia.
Habitat: Open places in the plains and valleys to moderate elevations in the mountains.
Origin: Native
Flowers: July - September
Great northern aster (Canadanthus modestus)
Distribution: Widely distributed throughout mountainous areas of Washington; British Columbia south to Oregon, east to Michigan.
Habitat: Streambanks and moist woods at moderate to mid-elevations in the mountains.
Origin: Native
Flowers: July-September
Hairy aster (Symphyotrichum pilosum)
Origin: Introduced
Hall's aster (Symphyotrichum hallii)
Distribution: West of the Cascades in Washington and, more commonly, in Oregon.
Habitat: Dry, open places in the valleys and plains.
Origin: Native
Flowers: July - October
Heath-leaved aster (Symphyotrichum ericoides)
Distribution: Occurring chiefly east of the Cascades crest in Washington; southern British Columbia and eastern Washington and Montana, south to Utah, Colorado and Nebraska.
Habitat: Open, wet or dry places in the valleys and plains; tolerant of alkali.
Origin: Native
Flowers: July-September
Henderson's aster (Symphyotrichum foliaceum)
Distribution: Alaska to California, east to Colorado
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Hybrid aster (Symphyotrichum ×amethystinum)
Origin: Introduced
Hybrid aster (Symphyotrichum ×columbianum)
Origin: Native
Intermountain aster (Symphyotrichum ascendens)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia south to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Meadows, grasslands, and forest openings, often where moist.
Origin: Native
Flowers: July-October
Jessica's aster (Symphyotrichum jessicae)
Distribution: The Palouse country of southeast Washington and adjacent Idaho.
Habitat: Streambanks and open places.
Origin: Native
Flowers: July - September
Klickitat aster (Eucephalus glaucescens)
Distribution: Occurring on both sides of the Cascades crest in Washington; endemic (only occurring in) Washington.
Habitat: Forest openings and meadows at low to moderate elevations.
Origin: Native
Flowers: July-October
Kootenai aster (Symphyotrichum foliaceum)
Distribution: Alaska to California, east to Colorado
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Leafy aster (Symphyotrichum foliaceum)
Distribution: Alaska to California, east to Colorado
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Leafy-bracted aster (Symphyotrichum foliaceum)
Distribution: Alaska to California, east to Colorado
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Leafybract aster (Symphyotrichum foliaceum)
Distribution: Alaska to California, east to Colorado
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Long leaved aster (Symphyotrichum ascendens)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia south to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Meadows, grasslands, and forest openings, often where moist.
Origin: Native
Flowers: July-October
Long-leaved aster (Symphyotrichum ascendens)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia south to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Meadows, grasslands, and forest openings, often where moist.
Origin: Native
Flowers: July-October
Marsh aster (Symphyotrichum lanceolatum)
Origin: Native
New England aster (Symphyotrichum novae-angliae)
Distribution: Native to eastern United States; introduced as an ornamental and occasionally escaping in the Pacific Northwest.
Habitat: Roadsides and disturbed areas where somewhat moist.
Origin: Introduced
Flowers: July-September
Northern bog aster (Symphyotrichum boreale)
Distribution: Alaska south to Idaho, east to Minnesota; rare in the Pacific Northwest.
Habitat: Cold bogs.
Origin: Native
Flowers: July - September
Olympic Mountain aster (Eucephalus paucicapitatus)
Distribution: Olympic Mountains of Washington and Vancouver Island, British Columbia.
Habitat: Open slopes, mid- to high elevations.
Origin: Native
Flowers: July-September
Oregon aster (Symphyotrichum bracteolatum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Sasketchewan and Rocky Mountain states.
Habitat: Moist to wet sunny places, wet thickets, along streams and ditches
Origin: Native
Flowers: July-September
Oregon white topped aster (Sericocarpus oregonensis)
Distribution: Occurring in the Columbia River Gorge in Washington; Washington south to California.
Habitat: Grasslands, forest openings, and savanna.
Origin: Native
Flowers: July-September
Pacific aster (Symphyotrichum chilense)
Distribution: Both sides of the Cascades, Washington to California, east to Montana and New Mexico.
Habitat: Dry, open places in the valleys and plains, to moderate elevations in the mountains.
Origin: Native
Flowers: July-October
Palouse aster (Symphyotrichum jessicae)
Distribution: The Palouse country of southeast Washington and adjacent Idaho.
Habitat: Streambanks and open places.
Origin: Native
Flowers: July - September
Parry's aster (Symphyotrichum foliaceum)
Distribution: Alaska to California, east to Colorado
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Rayless alkali aster (Symphyotrichum ciliatum)
Distribution: Occurring east of the Cascades in northern Washington; British Columbia south to northern Washington, east to Minnesota.
Habitat: Moist, usually saline ground, often along the shores of lakes and ponds.
Origin: Native
Flowers: August-September
Rayless annual aster (Symphyotrichum ciliatum)
Distribution: Occurring east of the Cascades in northern Washington; British Columbia south to northern Washington, east to Minnesota.
Habitat: Moist, usually saline ground, often along the shores of lakes and ponds.
Origin: Native
Flowers: August-September
Rigid white topped aster (Sericocarpus rigidus)
Distribution: West of the Cascades from southern Vancouver Island, BC, to southwest Oregon, but chiefly in Washington.
Habitat: Prairies and open areas at low elevations.
Origin: Native
Flowers: July - August
Rocky Mountain aster (Ionactis stenomeres)
Distribution: Southeast British Columbia and northeast Washington, and adjacent Idaho and Montana.
Habitat: Open hillsides and forest openings, moderate to fairly high elevations in the mountains.
Origin: Native
Flowers: Late June - Early September
Rough leaved aster (Eurybia radulina)
Distribution: Chiefly on the east side of the Cascades in Washington from low to moderate elevations; south to central California.
Habitat: Open woods.
Origin: Native
Flowers: July-September
Rough white prairie aster (Symphyotrichum falcatum)
Origin: Native
Rush aster (Symphyotrichum boreale)
Distribution: Alaska south to Idaho, east to Minnesota; rare in the Pacific Northwest.
Habitat: Cold bogs.
Origin: Native
Flowers: July - September
Short rayed aster (Symphyotrichum frondosum)
Distribution: Eastern Washington, south to California and east to Wyoming and Utah.
Habitat: Moist, usually saline soil, often along the shores of lakes and ponds, or in vernally moist, alkaline bottoms.
Origin: Native
Flowers: August - October
Short-rayed alkali aster (Symphyotrichum frondosum)
Distribution: Eastern Washington, south to California and east to Wyoming and Utah.
Habitat: Moist, usually saline soil, often along the shores of lakes and ponds, or in vernally moist, alkaline bottoms.
Origin: Native
Flowers: August - October
Showy aster (Eurybia conspicua)
Distribution: Northeast Oregon and eastern Washington, east to Wyoming and north to Saskatchewan
Habitat: Open woods, foothills to mid-elevations in the mountains
Origin: Native
Flowers: July - September
Siberian aster (Eurybia merita)
Origin: Native
Flowers: July - August
Siberian aster (Eurybia sibirica)
Distribution: Circumboreal; found in northern Rocky mountains, Pacific Northwest, and northward through Alberta, British Columbia, Yukon and Northwest Territories, and Alaska.
Habitat: In Washington, this species is found in alpine and subalpine meadows.
Origin: Native
Flowers: July - August
Slender white aster (Symphyotrichum boreale)
Distribution: Alaska south to Idaho, east to Minnesota; rare in the Pacific Northwest.
Habitat: Cold bogs.
Origin: Native
Flowers: July - September
Smooth aster (Symphyotrichum laeve)
Distribution: Eastern British Columbia, eastern Washington and northeast Oregon, east to Maine and Georgia.
Habitat: Open places in the plains and valleys to moderate elevations in the mountains.
Origin: Native
Flowers: July - September
Subalpine aster (Eurybia merita)
Origin: Native
Flowers: July - August
Thick stemmed aster (Eurybia integrifolia)
Distribution: Occurring in the northeastern and southeastern regions of Washington; Washington south to California, east to Montana, Wyoming, and Utah.
Habitat: Dry meadows, open coniferous forests, and riparian areas at mid to higher elevations.
Origin: Native
Flowers: June-September
Tufted white prairie aster (Symphyotrichum ericoides)
Distribution: Occurring chiefly east of the Cascades crest in Washington; southern British Columbia and eastern Washington and Montana, south to Utah, Colorado and Nebraska.
Habitat: Open, wet or dry places in the valleys and plains; tolerant of alkali.
Origin: Native
Flowers: July-September
Western American aster (Symphyotrichum ascendens)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia south to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Meadows, grasslands, and forest openings, often where moist.
Origin: Native
Flowers: July-October
Western aster (Symphyotrichum ascendens)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia south to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Meadows, grasslands, and forest openings, often where moist.
Origin: Native
Flowers: July-October
Western aster (Symphyotrichum spathulatum)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia south to California, east to the Rocky Mountains.
Habitat: Meadows and forest openings, moderate to mid-elevations in the mountains.
Origin: Native
Flowers: July-September
Western heath aster (Symphyotrichum falcatum)
Origin: Native
Western meadow aster (Symphyotrichum campestre)
Origin: Native
Western mountain aster (Symphyotrichum spathulatum)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia south to California, east to the Rocky Mountains.
Habitat: Meadows and forest openings, moderate to mid-elevations in the mountains.
Origin: Native
Flowers: July-September
Western showy aster (Eurybia conspicua)
Distribution: Northeast Oregon and eastern Washington, east to Wyoming and north to Saskatchewan
Habitat: Open woods, foothills to mid-elevations in the mountains
Origin: Native
Flowers: July - September
Western willow aster (Symphyotrichum lanceolatum)
Origin: Native
White prairie aster (Symphyotrichum falcatum)
Origin: Native
White-topped aster (Sericocarpus rigidus)
Distribution: West of the Cascades from southern Vancouver Island, BC, to southwest Oregon, but chiefly in Washington.
Habitat: Prairies and open areas at low elevations.
Origin: Native
Flowers: July - August
Asthmaweed (Conyza sumatrensis)
Origin: Introduced
Bigleaf avens (Geum macrophyllum)
Distribution: Both sides of the Cascades, Alaska to Baja California, east through Canada to Nova Scotia
Habitat: Common in moist woods and meadows from sea level to subalpine
Origin: Native
Flowers: April - August
Largeleaved avens (Geum macrophyllum)
Distribution: Both sides of the Cascades, Alaska to Baja California, east through Canada to Nova Scotia
Habitat: Common in moist woods and meadows from sea level to subalpine
Origin: Native
Flowers: April - August
Purple avens (Geum rivale)
Distribution: British Columbia and Okanogan County, Washington, east to Alberta, south in the Rocky Mountains to New Mexico.
Habitat: Stream banks, lake shores, bogs and wet meadows, at high elevations.
Origin: Native
Flowers: Late June - July
Ross's avens (Geum rossii)
Distribution: In Washington known only from the Wenatchee Mountains; Alaska and northern Canada south in Rocky and Cascades mountains to Nevada, Arizona and New Mexico; also in Far East Russia and Greenland.
Habitat: Arctic tundra, high gravelly meadows and scree slopes.
Origin: Native
Flowers: June- August
Water avens (Geum rivale)
Distribution: British Columbia and Okanogan County, Washington, east to Alberta, south in the Rocky Mountains to New Mexico.
Habitat: Stream banks, lake shores, bogs and wet meadows, at high elevations.
Origin: Native
Flowers: Late June - July
Yellow avens (Geum aleppicum)
Distribution: Occasional east of the Cascades, British Columbia to California, more common east of the Rockies in southern Canada.
Habitat: Along streams and in marshy or damp woods.
Origin: Native
Flowers: June - July
Alpine azalea (Kalmia procumbens)
Origin: Native
False azalea (Rhododendron menziesii)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Alberta, Idaho, Montana, and Wyoming.
Habitat: Forest understory and edges from montane to subalpine.
Origin: Native
Flowers: April-June
Trailing azalea (Kalmia procumbens)
Origin: Native