Vascular Plants
Includes all flowering plants, conifers, ferns and fern-allies.
Common names beginning with A:
213 common names
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Index to common names:
absinthe, adder's-mouth, adder's-tongue, agoseris, alder, Alexanders, alfalfa, alkali grass, alkali-mallow, alkaligrass, alkanet, allseed, almond, alpine-azalea, alpinegold, alumroot, alyssum, amaranth, ammania, amsinckia, anemone, angelica, ankle-aster, Annie, antelope-brush, Anthony's-turnip, apargidium, apple, apricot, archangel, arnica, arrow-grass, arrowhead, artichoke, arugula, arum, ash, asparagus, aspen, asphodel, aster, avens, awl-wort, azaleaabsinthe (Artemisia absinthium)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across much of North America to the Atlantic Coast.
Habitat: Roadsides, fields, ditches, wastelots, and other disturbed open areas.
Origin: Introduced from Eurasia
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across much of North America to the Atlantic Coast.
Habitat: Roadsides, fields, ditches, wastelots, and other disturbed open areas.
Origin: Introduced from Eurasia
Flowers: July-September
Growth Duration: Perennial
white adder's-mouth (Malaxis monophyllos)
Distribution: Reported to occur west of the Cascades crest in northwestern Washington, though no specimens seen; Alaska to northwestern Washington, east across Canada to the Great Lakes region and northeastern North America; disjunct in California and Colorado; also in Japan.
Habitat: Lowland bogs and swamps.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Distribution: Reported to occur west of the Cascades crest in northwestern Washington, though no specimens seen; Alaska to northwestern Washington, east across Canada to the Great Lakes region and northeastern North America; disjunct in California and Colorado; also in Japan.
Habitat: Lowland bogs and swamps.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
northern adder's-tongue (Ophioglossum pusillum)
Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east to Idaho and Montana, northern Great Plains, Great Lakes region, and northeastern North America.
Habitat: Moist meadows and edges of marshes or fens, from the coast to middle elevations in the mountains.
Origin: Native
Spores: May-July
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east to Idaho and Montana, northern Great Plains, Great Lakes region, and northeastern North America.
Habitat: Moist meadows and edges of marshes or fens, from the coast to middle elevations in the mountains.
Origin: Native
Spores: May-July
Growth Duration: Perennial
alpine lake agoseris (Nothocalais alpestris)
Distribution: Occurring on both sides of the Cascades crest in Washington, mostly from Mt. Rainier south; Washington to California.
Habitat: Open slopes and meadows from middle to high elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington, mostly from Mt. Rainier south; Washington to California.
Habitat: Open slopes and meadows from middle to high elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
annual agoseris (Agoseris heterophylla)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to Idaho, Montana, Utah, and Arizona.
Habitat: Dry, open areas at low to mid-elevations.
Origin: Native
Flowers: April-July
Growth Duration: Annual
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to Idaho, Montana, Utah, and Arizona.
Habitat: Dry, open areas at low to mid-elevations.
Origin: Native
Flowers: April-July
Growth Duration: Annual
large-flowered agoseris (Agoseris grandiflora)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Montana, Idaho and Nevada.
Habitat: Prairies, balds, meadows, and forest openings, often where seasonally dry, from low to middle elevations in the mountains.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Montana, Idaho and Nevada.
Habitat: Prairies, balds, meadows, and forest openings, often where seasonally dry, from low to middle elevations in the mountains.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
mountain agoseris (Agoseris monticola)
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Nevada.
Habitat: Mesic meadows in the subalpine and alpine, often in soils of volcanic origin.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Nevada.
Habitat: Mesic meadows in the subalpine and alpine, often in soils of volcanic origin.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
orange agoseris (Agoseris aurantiaca)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, Great Plains, and Quebec.
Habitat: Meadows and forest openings at from middle elevations to the alpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, Great Plains, and Quebec.
Habitat: Meadows and forest openings at from middle elevations to the alpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
pale agoseris (Agoseris glauca)
Distribution: Occurring chiefly east of the Cascades crest in Washington; Yukon Territory to California, east to the Rocky Mountains, northern Great Plains, and Great Lakes region.
Habitat: Open forests and open areas, from low to high elevations in the mountains.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; Yukon Territory to California, east to the Rocky Mountains, northern Great Plains, and Great Lakes region.
Habitat: Open forests and open areas, from low to high elevations in the mountains.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
seaside agoseris (Agoseris apargioides)
Distribution: Occurring west of the Cascades crest in Washington along the outer coast. Washington to California.
Habitat: Coastal dunes and beach heads.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington along the outer coast. Washington to California.
Habitat: Coastal dunes and beach heads.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
short-beaked agoseris (Agoseris glauca)
Distribution: Occurring chiefly east of the Cascades crest in Washington; Yukon Territory to California, east to the Rocky Mountains, northern Great Plains, and Great Lakes region.
Habitat: Open forests and open areas, from low to high elevations in the mountains.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; Yukon Territory to California, east to the Rocky Mountains, northern Great Plains, and Great Lakes region.
Habitat: Open forests and open areas, from low to high elevations in the mountains.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Sierra Nevada agoseris (Agoseris monticola)
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Nevada.
Habitat: Mesic meadows in the subalpine and alpine, often in soils of volcanic origin.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Nevada.
Habitat: Mesic meadows in the subalpine and alpine, often in soils of volcanic origin.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
spear leaved agoseris (Agoseris retrorsa)
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Nevada, Utah, and Arizona.
Habitat: Sagebrush desert, grassy slopes, and ponderosa pine forest openings at low to middle elevations.
Origin: Native
Flowers: May-June
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Nevada, Utah, and Arizona.
Habitat: Sagebrush desert, grassy slopes, and ponderosa pine forest openings at low to middle elevations.
Origin: Native
Flowers: May-June
Growth Duration: Perennial
tall agoseris (Agoseris ×elata)
Distribution: Occurring on both sides of the Cascades crest in Washington; south-central British Columbia to California.
Habitat: Meadows and open woods, from the valleys to middle elevations in the mountains.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; south-central British Columbia to California.
Habitat: Meadows and open woods, from the valleys to middle elevations in the mountains.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
Black alder (Alnus glutinosa)
Distribution: Occurring west of the Cascades crest in King County, where escaping from a wetland restoration planting. Great Lakes region east to the Atlantic Coast.
Habitat: Wetlands at low elevation.
Origin: Introduced from Europe
Flowers: March-May
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in King County, where escaping from a wetland restoration planting. Great Lakes region east to the Atlantic Coast.
Habitat: Wetlands at low elevation.
Origin: Introduced from Europe
Flowers: March-May
Growth Duration: Perennial
European alder (Alnus glutinosa)
Distribution: Occurring west of the Cascades crest in King County, where escaping from a wetland restoration planting. Great Lakes region east to the Atlantic Coast.
Habitat: Wetlands at low elevation.
Origin: Introduced from Europe
Flowers: March-May
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in King County, where escaping from a wetland restoration planting. Great Lakes region east to the Atlantic Coast.
Habitat: Wetlands at low elevation.
Origin: Introduced from Europe
Flowers: March-May
Growth Duration: Perennial
green alder (Alnus alnobetula)
Distribution: Widely distributed throughout the mountainous areas on both sides of the Cascades crest in Washington; Alaska to northern California, east to Alberta and the northern Rocky Mountain States.
Habitat: Moist areas, low to high elevations
Origin: Native
Flowers: April-July
Growth Duration: Perennial
Distribution: Widely distributed throughout the mountainous areas on both sides of the Cascades crest in Washington; Alaska to northern California, east to Alberta and the northern Rocky Mountain States.
Habitat: Moist areas, low to high elevations
Origin: Native
Flowers: April-July
Growth Duration: Perennial
mountain alder (Alnus alnobetula)
Distribution: Widely distributed throughout the mountainous areas on both sides of the Cascades crest in Washington; Alaska to northern California, east to Alberta and the northern Rocky Mountain States.
Habitat: Moist areas, low to high elevations
Origin: Native
Flowers: April-July
Growth Duration: Perennial
Distribution: Widely distributed throughout the mountainous areas on both sides of the Cascades crest in Washington; Alaska to northern California, east to Alberta and the northern Rocky Mountain States.
Habitat: Moist areas, low to high elevations
Origin: Native
Flowers: April-July
Growth Duration: Perennial
mountain alder (Alnus incana)
Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, northern Great Plains, and eastern North America,
Habitat: Moist places, streamsides, and avalanche chutes from low to middle elevations.
Origin: Native
Flowers: March-May
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, northern Great Plains, and eastern North America,
Habitat: Moist places, streamsides, and avalanche chutes from low to middle elevations.
Origin: Native
Flowers: March-May
Growth Duration: Perennial
red alder (Alnus rubra)
Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska to California, disjunct to the east in northern Idaho.
Habitat: Moist areas at low elevations.
Origin: Native
Flowers: March-April
Growth Duration: Perennial
Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska to California, disjunct to the east in northern Idaho.
Habitat: Moist areas at low elevations.
Origin: Native
Flowers: March-April
Growth Duration: Perennial
white alder (Alnus rhombifolia)
Distribution: Occurring chiefly east of the Cascades crest in Washington; Washington to California and Nevada, east to Idaho.
Habitat: Near streams at low elevations.
Origin: Native
Flowers: January-April
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; Washington to California and Nevada, east to Idaho.
Habitat: Near streams at low elevations.
Origin: Native
Flowers: January-April
Growth Duration: Perennial
heart-leaved Alexanders (Zizia aptera)
Distribution: Occurring east of the Cascades crest in north-central and eastern Washington; Yukon Territory to Nevada, east across much of North America to the Atlantic Coast.
Habitat: Moist or wet meadows, stream banks, and moist low ground; tolerant of alkali.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in north-central and eastern Washington; Yukon Territory to Nevada, east across much of North America to the Atlantic Coast.
Habitat: Moist or wet meadows, stream banks, and moist low ground; tolerant of alkali.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
alfalfa (Medicago sativa)
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east to the Atlantic Coast.
Habitat: Roadsides, fields, wastelots, and other disturbed, open areas; often escaping from commercial cultivation.
Origin: Introduced
Flowers: May-October
Growth Duration: Annual, Perennial
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east to the Atlantic Coast.
Habitat: Roadsides, fields, wastelots, and other disturbed, open areas; often escaping from commercial cultivation.
Origin: Introduced
Flowers: May-October
Growth Duration: Annual, Perennial
Nuttall's alkali grass (Puccinellia nuttalliana)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Minnesota, Kansas, eastern and eastern North America.
Habitat: Coastal salt marshes and inland alkali shores and stream banks.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Minnesota, Kansas, eastern and eastern North America.
Habitat: Coastal salt marshes and inland alkali shores and stream banks.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
alkali-mallow (Malvella leprosa)
Distribution: Occurring east of the Cascades crest in Washington; north-central Washington to California, east to southern Idaho, the southern Rocky Mountains, and the southern Great Plains.
Habitat: Sagebrush deert, typically in sandy (often alkaline) soil.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; north-central Washington to California, east to southern Idaho, the southern Rocky Mountains, and the southern Great Plains.
Habitat: Sagebrush deert, typically in sandy (often alkaline) soil.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
coast alkaligrass (Puccinellia maritima)
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to Washington; also in northeastern North America.
Habitat: Coastal, salt and brackish marshes, tidelands.
Origin: Introduced from Europe
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to Washington; also in northeastern North America.
Habitat: Coastal, salt and brackish marshes, tidelands.
Origin: Introduced from Europe
Flowers: May-August
Growth Duration: Perennial
European alkaligrass (Puccinellia distans)
Distribution: Occurring chiefly east of the Cascades in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Moist soil, especially where alkaline.
Origin: Introduced from Eurasia
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Moist soil, especially where alkaline.
Origin: Introduced from Eurasia
Flowers: June-August
Growth Duration: Perennial
Nootka alkaligrass (Puccinellia nutkaensis)
Distribution: Occurring west of the Cascades crest in Washington; Alaska to California; also in northeastern North America.
Habitat: Coastal marine shores, salt marshes, sea ledges, small rocky islands, gravel beaches.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; Alaska to California; also in northeastern North America.
Habitat: Coastal marine shores, salt marshes, sea ledges, small rocky islands, gravel beaches.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
shining alkaligrass (Puccinellia nutkaensis)
Distribution: Occurring west of the Cascades crest in Washington; Alaska to California; also in northeastern North America.
Habitat: Coastal marine shores, salt marshes, sea ledges, small rocky islands, gravel beaches.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; Alaska to California; also in northeastern North America.
Habitat: Coastal marine shores, salt marshes, sea ledges, small rocky islands, gravel beaches.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
small alkaligrass (Puccinellia pumila)
Distribution: Occurring west of the Cascades crest in Washington; Alaska to California; also in the Russian Far East.
Habitat: Coastal mudflats, salt marshes, estuaries, sandy or rocky marine shores.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; Alaska to California; also in the Russian Far East.
Habitat: Coastal mudflats, salt marshes, estuaries, sandy or rocky marine shores.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
weeping alkaligrass (Puccinellia distans)
Distribution: Occurring chiefly east of the Cascades in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Moist soil, especially where alkaline.
Origin: Introduced from Eurasia
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Moist soil, especially where alkaline.
Origin: Introduced from Eurasia
Flowers: June-August
Growth Duration: Perennial
common alkanet (Anchusa officinalis)
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; British Columbia to California, east to Rocky Mountains and northern Great Plains, also from the Great Lakes region to northeastern North America.
Habitat: Roadsides, fields, ditches, wastelots, and other disturbed, open areas at low elevations.
Origin: Introduced from Mediterranean region
Flowers: May-July
Growth Duration: Biennial, Perennial
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; British Columbia to California, east to Rocky Mountains and northern Great Plains, also from the Great Lakes region to northeastern North America.
Habitat: Roadsides, fields, ditches, wastelots, and other disturbed, open areas at low elevations.
Origin: Introduced from Mediterranean region
Flowers: May-July
Growth Duration: Biennial, Perennial
green alkanet (Pentaglottis sempervirens)
Distribution: Occurring west of the Cascades crest in Washington; southwestern British Columbia to California.
Habitat: Disturbed soil in forest edge and other shaded areas.
Origin: Introduced from Europe
Flowers: April-July
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; southwestern British Columbia to California.
Habitat: Disturbed soil in forest edge and other shaded areas.
Origin: Introduced from Europe
Flowers: April-July
Growth Duration: Perennial
Italian alkanet (Anchusa azurea)
Distribution: Occurring in scattered localities on both sides of the Cascades crest in Washington; British Columbia to California, scattered localities east to the Atlantic Coast.
Habitat: Disturbed soil.
Origin: Introduced from Eurasia
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring in scattered localities on both sides of the Cascades crest in Washington; British Columbia to California, scattered localities east to the Atlantic Coast.
Habitat: Disturbed soil.
Origin: Introduced from Eurasia
Flowers: June-August
Growth Duration: Perennial
fourleaf allseed (Polycarpon tetraphyllum)
Distribution: Occurring in scattered locations west of the Cascades crest in lowland western Washington; British Columbia to California, also in the southern U.S.
Habitat: Lawns, meadows, roadsides, wastelots, and other disturbed areas at low elevation.
Origin: Introduced from Europe
Flowers: April-June
Growth Duration: Annual
Distribution: Occurring in scattered locations west of the Cascades crest in lowland western Washington; British Columbia to California, also in the southern U.S.
Habitat: Lawns, meadows, roadsides, wastelots, and other disturbed areas at low elevation.
Origin: Introduced from Europe
Flowers: April-June
Growth Duration: Annual
almond (Prunus dulcis)
Distribution: Occurring in scattered locations east of the Cascades crest and in the Columbia River Gorge in Washington; Washington, Idaho, and California.
Habitat: Disturbed areas, mostly along riparian zones and rocky slopes.
Origin: Introduced from western Asia and northern Africa
Flowers: March-May
Growth Duration: Perennial
Distribution: Occurring in scattered locations east of the Cascades crest and in the Columbia River Gorge in Washington; Washington, Idaho, and California.
Habitat: Disturbed areas, mostly along riparian zones and rocky slopes.
Origin: Introduced from western Asia and northern Africa
Flowers: March-May
Growth Duration: Perennial
alpine-azalea (Kalmia procumbens)
Distribution: Known in Washington from a single, historic collection in Skagit County; Alaska to Washington, east across Canada and eastern North America to Greenland; also in Europe and Asia.
Habitat: Alpine zone.
Origin: Native
Flowers: July-August
Distribution: Known in Washington from a single, historic collection in Skagit County; Alaska to Washington, east across Canada and eastern North America to Greenland; also in Europe and Asia.
Habitat: Alpine zone.
Origin: Native
Flowers: July-August
small alpinegold (Hulsea nana)
Distribution: Occurring on both sides of the Cascades crest in Washington from Mount Rainier south; central Washington to California (not in northeastern Oregon).
Habitat: Generally around volcanic mountains above timberline.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington from Mount Rainier south; central Washington to California (not in northeastern Oregon).
Habitat: Generally around volcanic mountains above timberline.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
alpine alumroot (Heuchera glabra)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to Oregon.
Habitat: Streambanks and moist rocks, from the coast to above timberline
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to Oregon.
Habitat: Streambanks and moist rocks, from the coast to above timberline
Origin: Native
Flowers: June-August
Growth Duration: Perennial
crevice alumroot (Heuchera micrantha)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Idaho.
Habitat: Gravelly stream banks, rock crevices and talus slopes, sea level to subalpine.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Idaho.
Habitat: Gravelly stream banks, rock crevices and talus slopes, sea level to subalpine.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
gooseberry-leaved alumroot (Heuchera grossulariifolia)
Distribution: Occurring east of the Cascades crest in the Columbia River Gorge in south-central Washington; Washington to Oregon, east to Idaho and western Montana.
Habitat: Grassy canyons and rocky canyon walls to alpine scree and talus slopes.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in the Columbia River Gorge in south-central Washington; Washington to Oregon, east to Idaho and western Montana.
Habitat: Grassy canyons and rocky canyon walls to alpine scree and talus slopes.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
green-flowered alumroot (Heuchera chlorantha)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Oregon.
Habitat: Gravelly prairies and wooded hillsides.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Oregon.
Habitat: Gravelly prairies and wooded hillsides.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
lava alumroot (Heuchera cylindrica)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Wyoming, and Nevada.
Habitat: Rocky soil, cliffs and talus slopes, foothills to the subalpine.
Origin: Native
Flowers: April-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Wyoming, and Nevada.
Habitat: Rocky soil, cliffs and talus slopes, foothills to the subalpine.
Origin: Native
Flowers: April-August
Growth Duration: Perennial
meadow alumroot (Heuchera chlorantha)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Oregon.
Habitat: Gravelly prairies and wooded hillsides.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Oregon.
Habitat: Gravelly prairies and wooded hillsides.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
poker alumroot (Heuchera cylindrica)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Wyoming, and Nevada.
Habitat: Rocky soil, cliffs and talus slopes, foothills to the subalpine.
Origin: Native
Flowers: April-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Wyoming, and Nevada.
Habitat: Rocky soil, cliffs and talus slopes, foothills to the subalpine.
Origin: Native
Flowers: April-August
Growth Duration: Perennial
roundleaf alumroot (Heuchera cylindrica)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Wyoming, and Nevada.
Habitat: Rocky soil, cliffs and talus slopes, foothills to the subalpine.
Origin: Native
Flowers: April-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Wyoming, and Nevada.
Habitat: Rocky soil, cliffs and talus slopes, foothills to the subalpine.
Origin: Native
Flowers: April-August
Growth Duration: Perennial
small-flowered alumroot (Heuchera micrantha)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Idaho.
Habitat: Gravelly stream banks, rock crevices and talus slopes, sea level to subalpine.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Idaho.
Habitat: Gravelly stream banks, rock crevices and talus slopes, sea level to subalpine.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
smooth alumroot (Heuchera glabra)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to Oregon.
Habitat: Streambanks and moist rocks, from the coast to above timberline
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to Oregon.
Habitat: Streambanks and moist rocks, from the coast to above timberline
Origin: Native
Flowers: June-August
Growth Duration: Perennial
tall alumroot (Heuchera chlorantha)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Oregon.
Habitat: Gravelly prairies and wooded hillsides.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Oregon.
Habitat: Gravelly prairies and wooded hillsides.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
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
Growth Duration: Annual
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
Growth Duration: Annual
hoary alyssum (Berteroa incana)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east across most of North America to the Atlantic Coast.
Habitat: Uncommon in dry, waste places in most of the Pacific Northwest; common in northeast Washington.
Origin: Introduced from Europe
Flowers: May-August
Growth Duration: Annual, Biennial, Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east across most of North America to the Atlantic Coast.
Habitat: Uncommon in dry, waste places in most of the Pacific Northwest; common in northeast Washington.
Origin: Introduced from Europe
Flowers: May-August
Growth Duration: Annual, Biennial, Perennial
small alyssum (Alyssum alyssoides)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Meadows, forest openings, sagebrush flats, roadsides, fields, and disturbed open areas at low to middle elevations.
Origin: Introduced from Eurasia
Flowers: May-July
Growth Duration: Annual, Biennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Meadows, forest openings, sagebrush flats, roadsides, fields, and disturbed open areas at low to middle elevations.
Origin: Introduced from Eurasia
Flowers: May-July
Growth Duration: Annual, Biennial
sweet alyssum (Lobularia maritima)
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California and southwestern U.S., eastward to 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
Growth Duration: Annual, Perennial
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California and southwestern U.S., eastward to 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
Growth Duration: Annual, Perennial
Argentina amaranth (Amaranthus deflexus)
Distribution: Occurring east of the Cascades crest in Washingotn, where known only from Whitman County; Washington to California; also in eastern North America.
Habitat: Open, disturbed areas.
Origin: Introduced from South America
Flowers: July-September
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in Washingotn, where known only from Whitman County; Washington to California; also in eastern North America.
Habitat: Open, disturbed areas.
Origin: Introduced from South America
Flowers: July-September
Growth Duration: Annual
California amaranth (Amaranthus californicus)
Distribution: Occurring east of the Cascades crest in Washington; eastern Washington to California, east to the Rocky Mountains and Great Plains.
Habitat: Moist, often alkaline flats, lakeshores, and vernal pools.
Origin: Native
Flowers: July-October
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in Washington; eastern Washington to California, east to the Rocky Mountains and Great Plains.
Habitat: Moist, often alkaline flats, lakeshores, and vernal pools.
Origin: Native
Flowers: July-October
Growth Duration: Annual
green amaranth (Amaranthus hybridus)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Atlantic Coast.
Habitat: Fields, roadsides, wastelots, and other disturbed areas.
Origin: Introduced from eastern North America
Flowers: July-October
Growth Duration: Annual
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Atlantic Coast.
Habitat: Fields, roadsides, wastelots, and other disturbed areas.
Origin: Introduced from eastern North America
Flowers: July-October
Growth Duration: Annual
green amaranth (Amaranthus powellii)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Fields, roadsides, wastelots, and other disturbed areas.
Origin: Introduced from the southwestern United States and Mexico
Flowers: July-October
Growth Duration: Annual
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Fields, roadsides, wastelots, and other disturbed areas.
Origin: Introduced from the southwestern United States and Mexico
Flowers: July-October
Growth Duration: Annual
hybrid amaranth (Amaranthus hybridus)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Atlantic Coast.
Habitat: Fields, roadsides, wastelots, and other disturbed areas.
Origin: Introduced from eastern North America
Flowers: July-October
Growth Duration: Annual
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Atlantic Coast.
Habitat: Fields, roadsides, wastelots, and other disturbed areas.
Origin: Introduced from eastern North America
Flowers: July-October
Growth Duration: Annual
livid amaranth (Amaranthus blitum)
Distribution: Occurring chiefly west of the Cascades crest in Washington; southern British Columbia to California; also in the southeastern U.S. and eastern North America.
Habitat: Fields, roadsides, wastelots and other disturbed areas.
Origin: Introduced from the tropics
Flowers: May-July
Growth Duration: Annual
Distribution: Occurring chiefly west of the Cascades crest in Washington; southern British Columbia to California; also in the southeastern U.S. and eastern North America.
Habitat: Fields, roadsides, wastelots and other disturbed areas.
Origin: Introduced from the tropics
Flowers: May-July
Growth Duration: Annual
pale amaranth (Amaranthus blitum)
Distribution: Occurring chiefly west of the Cascades crest in Washington; southern British Columbia to California; also in the southeastern U.S. and eastern North America.
Habitat: Fields, roadsides, wastelots and other disturbed areas.
Origin: Introduced from the tropics
Flowers: May-July
Growth Duration: Annual
Distribution: Occurring chiefly west of the Cascades crest in Washington; southern British Columbia to California; also in the southeastern U.S. and eastern North America.
Habitat: Fields, roadsides, wastelots and other disturbed areas.
Origin: Introduced from the tropics
Flowers: May-July
Growth Duration: Annual
Powell's amaranth (Amaranthus powellii)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Fields, roadsides, wastelots, and other disturbed areas.
Origin: Introduced from the southwestern United States and Mexico
Flowers: July-October
Growth Duration: Annual
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Fields, roadsides, wastelots, and other disturbed areas.
Origin: Introduced from the southwestern United States and Mexico
Flowers: July-October
Growth Duration: Annual
smooth amaranth (Amaranthus hybridus)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Atlantic Coast.
Habitat: Fields, roadsides, wastelots, and other disturbed areas.
Origin: Introduced from eastern North America
Flowers: July-October
Growth Duration: Annual
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Atlantic Coast.
Habitat: Fields, roadsides, wastelots, and other disturbed areas.
Origin: Introduced from eastern North America
Flowers: July-October
Growth Duration: Annual
western ammania (Ammannia robusta)
Distribution: Occurring east of the Cascades crest in Washington chiefly along the Columbia River; British Columbia to California, east to the Great Lakes region and midwestern U.S.
Habitat: Wet places, often where alkaline.
Origin: Native
Flowers: May-June
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in Washington chiefly along the Columbia River; British Columbia to California, east to the Great Lakes region and midwestern U.S.
Habitat: Wet places, often where alkaline.
Origin: Native
Flowers: May-June
Growth Duration: Annual
bristly amsinckia (Amsinckia tessellata)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to Idaho, south to New Mexico.
Habitat: Roadsides and dry, open slopes and flats, often in disturbed soil.
Origin: Native
Flowers: April-June
Growth Duration: Annual
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to Idaho, south to New Mexico.
Habitat: Roadsides and dry, open slopes and flats, often in disturbed soil.
Origin: Native
Flowers: April-June
Growth Duration: Annual
seaside amsinckia (Amsinckia spectabilis)
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California.
Habitat: Coastal dunes or sandy bluffs.
Origin: Native
Flowers: May-July
Growth Duration: Annual
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California.
Habitat: Coastal dunes or sandy bluffs.
Origin: Native
Flowers: May-July
Growth Duration: Annual
cliff anemone (Anemone multifida)
Distribution: Occurring on both sides of the Cascades crest and in the Olympic Mountains in Washington; Alaska to California, east to the northern Great Plains, Great Lakes region, and northeastern North America.
Habitat: From forest openings in the foothills to alpine meadows.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest and in the Olympic Mountains in Washington; Alaska to California, east to the northern Great Plains, Great Lakes region, and northeastern North America.
Habitat: From forest openings in the foothills to alpine meadows.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Drummond's anemone (Anemone drummondii)
Distribution: Occurring in the Olympic and Cascade Mountains in Washington; Alaska to California, east to Montana and Wyoming.
Habitat: Subalpine to alpine meadows.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring in the Olympic and Cascade Mountains in Washington; Alaska to California, east to Montana and Wyoming.
Habitat: Subalpine to alpine meadows.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
little mountain anemone (Anemone lyallii)
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California.
Habitat: Low elevation prairies to subalpine ridges.
Origin: Native
Flowers: March-July
Growth Duration: Perennial
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California.
Habitat: Low elevation prairies to subalpine ridges.
Origin: Native
Flowers: March-July
Growth Duration: Perennial
Lyall's anemone (Anemone lyallii)
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California.
Habitat: Low elevation prairies to subalpine ridges.
Origin: Native
Flowers: March-July
Growth Duration: Perennial
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California.
Habitat: Low elevation prairies to subalpine ridges.
Origin: Native
Flowers: March-July
Growth Duration: Perennial
northern anemone (Anemone parviflora)
Distribution: Occurring on both sides of the Cascades crest in the North Cascades in Washington; Alaska to northern Washington, east to Montana and Wyoming, in scattered locations in Utah and Colorado, and also east across northern Canada to the Atlantic Coast.
Habitat: Mountain meadows and subalpine stream banks.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in the North Cascades in Washington; Alaska to northern Washington, east to Montana and Wyoming, in scattered locations in Utah and Colorado, and also east across northern Canada to the Atlantic Coast.
Habitat: Mountain meadows and subalpine stream banks.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Oregon anemone (Anemone oregana)
Distribution: Occurring in forested areas on both sides of the Cascades crest in Washington; Washington to northern California.
Habitat: Moist, open woods, low to mid-elevations in the mountains, also in marshes and bogs along the coast.
Origin: Native
Flowers: March-June
Growth Duration: Perennial
Distribution: Occurring in forested areas on both sides of the Cascades crest in Washington; Washington to northern California.
Habitat: Moist, open woods, low to mid-elevations in the mountains, also in marshes and bogs along the coast.
Origin: Native
Flowers: March-June
Growth Duration: Perennial
Pacific anemone (Anemone multifida)
Distribution: Occurring on both sides of the Cascades crest and in the Olympic Mountains in Washington; Alaska to California, east to the northern Great Plains, Great Lakes region, and northeastern North America.
Habitat: From forest openings in the foothills to alpine meadows.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest and in the Olympic Mountains in Washington; Alaska to California, east to the northern Great Plains, Great Lakes region, and northeastern North America.
Habitat: From forest openings in the foothills to alpine meadows.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Piper's anemone (Anemone piperi)
Distribution: Occurring east of the Cascades crest in Washington in the far eastern part of the state; Washington to northeast Oregon east to Idaho and western Montana.
Habitat: Shady woods at moderate elevations in the mountains.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington in the far eastern part of the state; Washington to northeast Oregon east to Idaho and western Montana.
Habitat: Shady woods at moderate elevations in the mountains.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
small-flowered anemone (Anemone parviflora)
Distribution: Occurring on both sides of the Cascades crest in the North Cascades in Washington; Alaska to northern Washington, east to Montana and Wyoming, in scattered locations in Utah and Colorado, and also east across northern Canada to the Atlantic Coast.
Habitat: Mountain meadows and subalpine stream banks.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in the North Cascades in Washington; Alaska to northern Washington, east to Montana and Wyoming, in scattered locations in Utah and Colorado, and also east across northern Canada to the Atlantic Coast.
Habitat: Mountain meadows and subalpine stream banks.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
threeleaf anemone (Anemone deltoidea)
Distribution: Occurring chiefly west of the Cascades crest and east in the Columbia River Gorge in Washington; Washington to California.
Habitat: Dry to moist woodlands at low to middle elevations.
Origin: Native
Flowers: April-May
Growth Duration: Perennial
Distribution: Occurring chiefly west of the Cascades crest and east in the Columbia River Gorge in Washington; Washington to California.
Habitat: Dry to moist woodlands at low to middle elevations.
Origin: Native
Flowers: April-May
Growth Duration: Perennial
Canby's angelica (Angelica canbyi)
Distribution: Occurring chiefly east of the Cascades crest in Washington, though disjunct on the Olympic Peninsula; northern Washington to central and northeastern Oregon.
Habitat: Meadows and forest openings, generally where moist, from low to middle elevations in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington, though disjunct on the Olympic Peninsula; northern Washington to central and northeastern Oregon.
Habitat: Meadows and forest openings, generally where moist, from low to middle elevations in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Henderson's angelica (Angelica hendersonii)
Distribution: Occurring on the outer coast in Washington; northwestern Washington to California.
Habitat: Coastal bluffs and sand dunes.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
Distribution: Occurring on the outer coast in Washington; northwestern Washington to California.
Habitat: Coastal bluffs and sand dunes.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
kneeling angelica (Angelica genuflexa)
Distribution: Occurring chiefly west of the Cascades crest and east in the Columbia River Gorge in Washington; Alaska to California, east in British Columbia to the Selkirk Mountains.
Habitat: Stream banks, wet meadows and other moist places, from low to middle elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring chiefly west of the Cascades crest and east in the Columbia River Gorge in Washington; Alaska to California, east in British Columbia to the Selkirk Mountains.
Habitat: Stream banks, wet meadows and other moist places, from low to middle elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Lyall's angelica (Angelica arguta)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia 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
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia 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
Growth Duration: Perennial
seacoast angelica (Angelica lucida)
Distribution: Occurring west of the Cascades crest in Washington in the coastal counties; Alaska to California, also in eastern North America; Far East Russia.
Habitat: Coastal bluffs, beaches, and estuaries.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington in the coastal counties; Alaska to California, also in eastern North America; Far East Russia.
Habitat: Coastal bluffs, beaches, and estuaries.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
sharp-tooth angelica (Angelica arguta)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia 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
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia 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
Growth Duration: Perennial
woolly angelica (Angelica hendersonii)
Distribution: Occurring on the outer coast in Washington; northwestern Washington to California.
Habitat: Coastal bluffs and sand dunes.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
Distribution: Occurring on the outer coast in Washington; northwestern Washington to California.
Habitat: Coastal bluffs and sand dunes.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
Rocky Mountain ankle-aster (Ionactis stenomeres)
Distribution: Occurring east of the Cascades crest in northeastern Washington; southeastern British Columbia to northeastern Washington, east to Idaho and Montana.
Habitat: Open hillsides and forest openings, from to fairly high elevations in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in northeastern Washington; southeastern British Columbia to northeastern Washington, east to Idaho and Montana.
Habitat: Open hillsides and forest openings, from to fairly high elevations in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
sweet Annie (Artemisia annua)
Distribution: Occurring in scattered locations east of the Cascades crest and in the Columbia River Gorge in Washington; Washington to California, east across most of North America to the Atlantic Coast.
Habitat: Roadsides, fields, ditches, wastelots, and other disturbed open places.
Origin: Introduced from Eurasia
Flowers: August-October
Growth Duration: Annual
Distribution: Occurring in scattered locations east of the Cascades crest and in the Columbia River Gorge in Washington; Washington to California, east across most of North America to the Atlantic Coast.
Habitat: Roadsides, fields, ditches, wastelots, and other disturbed open places.
Origin: Introduced from Eurasia
Flowers: August-October
Growth Duration: Annual
antelope-brush (Purshia tridentata)
Distribution: Widely distributed east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and Nebraska.
Habitat: Sagebrush desert and shrub-steppe to ponderosa pine forests.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
Distribution: Widely distributed east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and Nebraska.
Habitat: Sagebrush desert and shrub-steppe to ponderosa pine forests.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
St. Anthony's-turnip (Ranunculus bulbosus)
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California, also widespread in eastern North America.
Habitat: Disturbed open areas at low elevation.
Origin: Introduced from Europe
Flowers: May-June
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California, also widespread in eastern North America.
Habitat: Disturbed open areas at low elevation.
Origin: Introduced from Europe
Flowers: May-June
Growth Duration: Perennial
apargidium (Microseris borealis)
Distribution: Occurring west of the Cascades crest in Washington; southern Alaska to northern California.
Habitat: Sphagnum bogs and wet meadows in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; southern Alaska to northern California.
Habitat: Sphagnum bogs and wet meadows in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
cultivated apple (Malus domestica)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
Habitat: Mesic thickets and riparian zones.
Origin: Introduced from Asia
Flowers: April-June
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
Habitat: Mesic thickets and riparian zones.
Origin: Introduced from Asia
Flowers: April-June
Growth Duration: Perennial
Dawson apple (Malus ×dawsoniana)
Distribution: Occurring west of the Cascades crest in Washington; Washington to Oregon.
Habitat: Fields, thickets, open damp forests, sea bluffs, roadsides, wastelots, and abandoned homesteads.
Origin: Escaping from cultivation
Flowers: April-May
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; Washington to Oregon.
Habitat: Fields, thickets, open damp forests, sea bluffs, roadsides, wastelots, and abandoned homesteads.
Origin: Escaping from cultivation
Flowers: April-May
Growth Duration: Perennial
orchard apple (Malus domestica)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
Habitat: Mesic thickets and riparian zones.
Origin: Introduced from Asia
Flowers: April-June
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
Habitat: Mesic thickets and riparian zones.
Origin: Introduced from Asia
Flowers: April-June
Growth Duration: Perennial
apricot (Prunus armeniaca)
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; southern British Columbia to California, east to the Rocky Mountains, and in scattered areas eastward to the Atlantic Coast.
Habitat: Sagebrush desert, ledges, gravel or clay slopes, thickets, and shorelines
Origin: Introduced from China
Flowers: March-May
Growth Duration: Perennial
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; southern British Columbia to California, east to the Rocky Mountains, and in scattered areas eastward to the Atlantic Coast.
Habitat: Sagebrush desert, ledges, gravel or clay slopes, thickets, and shorelines
Origin: Introduced from China
Flowers: March-May
Growth Duration: Perennial
yellow archangel (Lamium galeobdolon)
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California, also in eastern North America.
Habitat: Lowland forest understory, often where disturbed.
Origin: Introduced from Eurasia
Flowers: April-June
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California, also in eastern North America.
Habitat: Lowland forest understory, often where disturbed.
Origin: Introduced from Eurasia
Flowers: April-June
Growth Duration: Perennial
broad-leaved arnica (Arnica latifolia)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains.
Habitat: Common in forest openings and meadows, and open, rocky areas from middle to high elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains.
Habitat: Common in forest openings and meadows, and open, rocky areas from middle to high elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
bunch arnica (Arnica sororia)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, and Wyoming.
Habitat: From low elevation prairies and grasslands to coniferous forest openings at middle elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, and Wyoming.
Habitat: From low elevation prairies and grasslands to coniferous forest openings at middle elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
clasping arnica (Arnica lanceolata)
Distribution: Occurring on both sides of the Cascades crest in Washington, including the Olympic Mountains and the northeastern region; Alaska to California, east to the Rocky Mountains, also in northeastern North America.
Habitat: Streambanks, moist woods and meadows from middle elevations to the subalpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington, including the Olympic Mountains and the northeastern region; Alaska to California, east to the Rocky Mountains, also in northeastern North America.
Habitat: Streambanks, moist woods and meadows from middle elevations to the subalpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
cordilleran arnica (Arnica mollis)
Distribution: Occurring on both sides of the Cascades crest and in the Olympic Mountains in Washington; Alaska to California, east to the Rocky Mountains.
Habitat: Moist meadows from middle elevations to the alpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest and in the Olympic Mountains in Washington; Alaska to California, east to the Rocky Mountains.
Habitat: Moist meadows from middle elevations to the alpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
hairy arnica (Arnica mollis)
Distribution: Occurring on both sides of the Cascades crest and in the Olympic Mountains in Washington; Alaska to California, east to the Rocky Mountains.
Habitat: Moist meadows from middle elevations to the alpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest and in the Olympic Mountains in Washington; Alaska to California, east to the Rocky Mountains.
Habitat: Moist meadows from middle elevations to the alpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
heart-leaf arnica (Arnica cordifolia)
Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, northern Great Plains, and the Great Lakes region.
Habitat: Light forest understory, openings, and edge, from low elevations to the subalpine.
Origin: Native
Flowers: April-July
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, northern Great Plains, and the Great Lakes region.
Habitat: Light forest understory, openings, and edge, from low elevations to the subalpine.
Origin: Native
Flowers: April-July
Growth Duration: Perennial
hillside arnica (Arnica fulgens)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Meadows and open slopes from the foothills to middle elevations in the mountains
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Meadows and open slopes from the foothills to middle elevations in the mountains
Origin: Native
Flowers: May-July
Growth Duration: Perennial
leafy arnica (Arnica chamissonis)
Distribution: Occurring both sides of the Cascades, including the northeastern corner of Washington; Alaska to California, east to the Rocky Mountains, east across Canada to the Atlantic Coast.
Habitat: Meadows and wet places from middle elevations to the subalpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring both sides of the Cascades, including the northeastern corner of Washington; Alaska to California, east to the Rocky Mountains, east across Canada to the Atlantic Coast.
Habitat: Meadows and wet places from middle elevations to the subalpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
longleaf arnica (Arnica longifolia)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Rocky soil in seeps or springs, cliffs, or riverbanks, from middle elevations to the alpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Rocky soil in seeps or springs, cliffs, or riverbanks, from middle elevations to the alpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
meadow arnica (Arnica chamissonis)
Distribution: Occurring both sides of the Cascades, including the northeastern corner of Washington; Alaska to California, east to the Rocky Mountains, east across Canada to the Atlantic Coast.
Habitat: Meadows and wet places from middle elevations to the subalpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring both sides of the Cascades, including the northeastern corner of Washington; Alaska to California, east to the Rocky Mountains, east across Canada to the Atlantic Coast.
Habitat: Meadows and wet places from middle elevations to the subalpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
mountain arnica (Arnica latifolia)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains.
Habitat: Common in forest openings and meadows, and open, rocky areas from middle to high elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains.
Habitat: Common in forest openings and meadows, and open, rocky areas from middle to high elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
narrowleaf arnica (Arnica chamissonis)
Distribution: Occurring both sides of the Cascades, including the northeastern corner of Washington; Alaska to California, east to the Rocky Mountains, east across Canada to the Atlantic Coast.
Habitat: Meadows and wet places from middle elevations to the subalpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring both sides of the Cascades, including the northeastern corner of Washington; Alaska to California, east to the Rocky Mountains, east across Canada to the Atlantic Coast.
Habitat: Meadows and wet places from middle elevations to the subalpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Nevada arnica (Arnica nevadensis)
Distribution: Occurring in the Cascades and Olympic mountains in Washington; Washington to California, east to Nevada.
Habitat: Open, rocky slopes and forest openings in the subalpine and alpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring in the Cascades and Olympic mountains in Washington; Washington to California, east to Nevada.
Habitat: Open, rocky slopes and forest openings in the subalpine and alpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
orange arnica (Arnica fulgens)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Meadows and open slopes from the foothills to middle elevations in the mountains
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Meadows and open slopes from the foothills to middle elevations in the mountains
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Parry's arnica (Arnica parryi)
Distribution: Occurring on both sides of the Cascades crest in Washington; Yukon Territory to California, east to the Rocky Mountains.
Habitat: Open woods and meadows, from middle elevations to the alpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Yukon Territory to California, east to the Rocky Mountains.
Habitat: Open woods and meadows, from middle elevations to the alpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
rayless arnica (Arnica discoidea)
Distribution: Occurring in the Cascades Mountains of Klickitat and Skamania counties in Washington; Washington to California, east to Nevada.
Habitat: Forest openings from middle elevations to the subalpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring in the Cascades Mountains of Klickitat and Skamania counties in Washington; Washington to California, east to Nevada.
Habitat: Forest openings from middle elevations to the subalpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Rydberg's arnica (Arnica rydbergii)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to northern California, east to Alberta and Colorado.
Habitat: Dry meadows and open slopes at high elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to northern California, east to Alberta and Colorado.
Habitat: Dry meadows and open slopes at high elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
seep spring arnica (Arnica longifolia)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Rocky soil in seeps or springs, cliffs, or riverbanks, from middle elevations to the alpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Rocky soil in seeps or springs, cliffs, or riverbanks, from middle elevations to the alpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Sierra arnica (Arnica nevadensis)
Distribution: Occurring in the Cascades and Olympic mountains in Washington; Washington to California, east to Nevada.
Habitat: Open, rocky slopes and forest openings in the subalpine and alpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring in the Cascades and Olympic mountains in Washington; Washington to California, east to Nevada.
Habitat: Open, rocky slopes and forest openings in the subalpine and alpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
silvery arnica (Arnica chamissonis)
Distribution: Occurring both sides of the Cascades, including the northeastern corner of Washington; Alaska to California, east to the Rocky Mountains, east across Canada to the Atlantic Coast.
Habitat: Meadows and wet places from middle elevations to the subalpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring both sides of the Cascades, including the northeastern corner of Washington; Alaska to California, east to the Rocky Mountains, east across Canada to the Atlantic Coast.
Habitat: Meadows and wet places from middle elevations to the subalpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
slender arnica (Arnica gracilis)
Distribution: Occurring on both sides of the Cascades crest in the mountainous areas in Washington; British Columbia to Oregon, east to Alberta, Montana, Wyoming, and Utah.
Habitat: Dry, rocky slopes and meadows, from the subalpine to alpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in the mountainous areas in Washington; British Columbia to Oregon, east to Alberta, Montana, Wyoming, and Utah.
Habitat: Dry, rocky slopes and meadows, from the subalpine to alpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
sticky arnica (Arnica ovata)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Montana and Utah.
Habitat: Rocky places from middle elevations to the subalpine and alpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Montana and Utah.
Habitat: Rocky places from middle elevations to the subalpine and alpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
sticky-leaf arnica (Arnica ovata)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Montana and Utah.
Habitat: Rocky places from middle elevations to the subalpine and alpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Montana and Utah.
Habitat: Rocky places from middle elevations to the subalpine and alpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
stream bank arnica (Arnica lanceolata)
Distribution: Occurring on both sides of the Cascades crest in Washington, including the Olympic Mountains and the northeastern region; Alaska to California, east to the Rocky Mountains, also in northeastern North America.
Habitat: Streambanks, moist woods and meadows from middle elevations to the subalpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington, including the Olympic Mountains and the northeastern region; Alaska to California, east to the Rocky Mountains, also in northeastern North America.
Habitat: Streambanks, moist woods and meadows from middle elevations to the subalpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
subalpine arnica (Arnica rydbergii)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to northern California, east to Alberta and Colorado.
Habitat: Dry meadows and open slopes at high elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to northern California, east to Alberta and Colorado.
Habitat: Dry meadows and open slopes at high elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
twin arnica (Arnica sororia)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, and Wyoming.
Habitat: From low elevation prairies and grasslands to coniferous forest openings at middle elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, and Wyoming.
Habitat: From low elevation prairies and grasslands to coniferous forest openings at middle elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
awl-leaf arrow-grass (Triglochin scilloides)
Distribution: Occurring chiefly west of the Cascades crest along the coastal counties in Washington; British Columbia to Baja California, Mexico, east to the Rocky Mountains and northern Great Plains; also in South America.
Habitat: Generally in shallow water, but often stranded in mud at edge of receding ponds, coastal tideflats to interior valleys.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring chiefly west of the Cascades crest along the coastal counties in Washington; British Columbia to Baja California, Mexico, east to the Rocky Mountains and northern Great Plains; also in South America.
Habitat: Generally in shallow water, but often stranded in mud at edge of receding ponds, coastal tideflats to interior valleys.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
graceful arrow-grass (Triglochin concinna)
Distribution: Occurring west of the Cacades crest along the coast in Washington; southwestern British Columbia to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Dry meadows and marshes, always where brackish or saline to alkaline.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Distribution: Occurring west of the Cacades crest along the coast in Washington; southwestern British Columbia to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Dry meadows and marshes, always where brackish or saline to alkaline.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
marsh arrow-grass (Triglochin palustris)
Distribution: Occurring east of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, Great Plains, Great Lakes region, and northeastern North America; circumboreal and in South America.
Habitat: Coastal bogs to inland meadows, mudflats, and gravelly stream margins, often where brackish or alkaline.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, Great Plains, Great Lakes region, and northeastern North America; circumboreal and in South America.
Habitat: Coastal bogs to inland meadows, mudflats, and gravelly stream margins, often where brackish or alkaline.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
seaside arrow-grass (Triglochin maritima)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, further eastward across the northern U.S. and southern Canada to the Atlantic Coast.
Habitat: Marshy to moist, gravelly areas, mostly were saline or alkaline.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, further eastward across the northern U.S. and southern Canada to the Atlantic Coast.
Habitat: Marshy to moist, gravelly areas, mostly were saline or alkaline.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
striate arrow-grass (Triglochin striata)
Distribution: Occurring west of the Cascades crest along the coast in Washington; Washington to California; also in the southeastern U.S.
Habitat: Coastal alkaline marshes.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest along the coast in Washington; Washington to California; also in the southeastern U.S.
Habitat: Coastal alkaline marshes.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
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
Growth Duration: Perennial
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
Growth Duration: Perennial
common arrowhead (Sagittaria latifolia)
Distribution: Occurring on both sides of the Cascades in Washington; Vancouver Island, British Columbia to central California; central North America to the Atlantic Coast.
Habitat: Ditches, ponds, lakes, swampy areas.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades in Washington; Vancouver Island, British Columbia to central California; central North America to the Atlantic Coast.
Habitat: Ditches, ponds, lakes, swampy areas.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
delta arrowhead (Sagittaria platyphylla)
Distribution: Occurring west of the Cascades crest in Washington; Washington and Portland, Oregon area, otherwise south-central U.S., and in scattered locations in central and northeastern U.S., where native.
Habitat: Pond and lake margins.
Origin: Introduced from the southeastern U.S.
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; Washington and Portland, Oregon area, otherwise south-central U.S., and in scattered locations in central and northeastern U.S., where native.
Habitat: Pond and lake margins.
Origin: Introduced from the southeastern U.S.
Flowers: June-August
Growth Duration: Perennial
grassy arrowhead (Sagittaria graminea)
Distribution: Occurring west of the Cascades crest in Washington; Great Plains to the Atlantic Coast.
Habitat: Wetlands, ponds, and lakes
Origin: Introduced from central and eastern North America
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; Great Plains to the Atlantic Coast.
Habitat: Wetlands, ponds, and lakes
Origin: Introduced from central and eastern North America
Flowers: June-August
Growth Duration: Perennial
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
Growth Duration: Perennial
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
Growth Duration: Perennial
sessile-fruited arrowhead (Sagittaria rigida)
Distribution: Occurring west of the Cascades crest in Washington; also in western Idaho; otherwise in eastern North America, where native.
Habitat: Pond and lake margins.
Origin: Introduced from eastern North America
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; also in western Idaho; otherwise in eastern North America, where native.
Habitat: Pond and lake margins.
Origin: Introduced from eastern North America
Flowers: June-August
Growth Duration: Perennial
Jerusalem artichoke (Helianthus tuberosus)
Distribution: Occurring in scattered locations chiefly east of the Cascades crest in Washington; .Washington, east to the Rocky Mountains, native from the Great Plains to the Atlantic Coast.
Habitat: Roadsides, fields, ditches, wastelots, and other disturbed areas, where escaping from cultivation.
Origin: Introduced from central and eastern North America
Flowers: August-October
Growth Duration: Perennial
Distribution: Occurring in scattered locations chiefly east of the Cascades crest in Washington; .Washington, east to the Rocky Mountains, native from the Great Plains to the Atlantic Coast.
Habitat: Roadsides, fields, ditches, wastelots, and other disturbed areas, where escaping from cultivation.
Origin: Introduced from central and eastern North America
Flowers: August-October
Growth Duration: Perennial
arugula (Eruca vesicaria)
Distribution: Occurring in scattered locations on both sides of the Cascades crest British Columbia to California, east across most of North America to the Atlantic Coast.
Habitat: Grain fields and waste ground.
Origin: Introduced from Eurasia
Flowers: May-June
Growth Duration: Annual
Distribution: Occurring in scattered locations on both sides of the Cascades crest British Columbia to California, east across most of North America to the Atlantic Coast.
Habitat: Grain fields and waste ground.
Origin: Introduced from Eurasia
Flowers: May-June
Growth Duration: Annual
arrow arum (Peltandra virginica)
Distribution: Occurring in scattered locations west of the Cascades crest in Washington; western Washington to northwestern Oregon, otherwise eastern North America where native.
Habitat: Shallow water of slow moving water, ponds, and lake shores at low elevation.
Origin: Introduced from eastern North America
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring in scattered locations west of the Cascades crest in Washington; western Washington to northwestern Oregon, otherwise eastern North America where native.
Habitat: Shallow water of slow moving water, ponds, and lake shores at low elevation.
Origin: Introduced from eastern North America
Flowers: June-August
Growth Duration: Perennial
green ash (Fraxinus pennsylvanica)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to Oregon, east to Idaho and Montana; native to central and eastern North America.
Habitat: Riparian zones where soil is moist but not saturated.
Origin: Introduced from central and eastern North America
Flowers: April-June
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to Oregon, east to Idaho and Montana; native to central and eastern North America.
Habitat: Riparian zones where soil is moist but not saturated.
Origin: Introduced from central and eastern North America
Flowers: April-June
Growth Duration: Perennial
Greene's mountain ash (Sorbus scopulina)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Open areas, from middle elevations to the subalpine.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Open areas, from middle elevations to the subalpine.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Oregon ash (Fraxinus latifolia)
Distribution: Occurring chiefly west of the Cascades crest but also east in the Columbia River Gorge in Washington; southwestern British Columbia to California.
Habitat: Forest edge, thickets, prairie margins, and fields, generally where moist.
Origin: Native
Flowers: March-May
Growth Duration: Perennial
Distribution: Occurring chiefly west of the Cascades crest but also east in the Columbia River Gorge in Washington; southwestern British Columbia to California.
Habitat: Forest edge, thickets, prairie margins, and fields, generally where moist.
Origin: Native
Flowers: March-May
Growth Duration: Perennial
asparagus (Asparagus officinalis)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Atlantic Coast.
Habitat: Garden escape, often of roadsides, fields, wastelots, and other disturbed areas..
Origin: Introduced from Eurasia
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Atlantic Coast.
Habitat: Garden escape, often of roadsides, fields, wastelots, and other disturbed areas..
Origin: Introduced from Eurasia
Flowers: June-August
Growth Duration: Perennial
quaking aspen (Populus tremuloides)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across much of North America to the Atlantic Coast.
Habitat: Moist areas, low to fairly high elevations in the mountains
Origin: Native
Flowers: April-June
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across much of North America to the Atlantic Coast.
Habitat: Moist areas, low to fairly high elevations in the mountains
Origin: Native
Flowers: April-June
Growth Duration: Perennial
western asphodel (Triantha occidentalis)
Distribution: Occurring in the Olympic and Cascade mountains in Washington; British Columbia to California.
Habitat: Moist meadows, bogs and streambanks, mid- to high elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring in the Olympic and Cascade mountains in Washington; British Columbia to California.
Habitat: Moist meadows, bogs and streambanks, mid- to high elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
alkali American aster (Symphyotrichum ciliatum)
Distribution: Occurring east of the Cascades crest in northern Washington; British Columbia to northern Washington, east across Canada and the northern U.S. to the Atlantic Coast.
Habitat: Moist to dry open forest and meadows.
Origin: Native
Flowers: August-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in northern Washington; British Columbia to northern Washington, east across Canada and the northern U.S. to the Atlantic Coast.
Habitat: Moist to dry open forest and meadows.
Origin: Native
Flowers: August-September
Growth Duration: Perennial
alkali aster (Symphyotrichum frondosum)
Distribution: British Columbia to California, esat to Idaho, Wyoming, Colorado, and New Mexico.
Habitat: Moist, usually saline soil, often along the shores of lakes and ponds, or in vernally moist, alkaline bottoms.
Origin: Native
Flowers: August-October
Growth Duration: Annual, Perennial
Distribution: British Columbia to California, esat to Idaho, Wyoming, Colorado, and New Mexico.
Habitat: Moist, usually saline soil, often along the shores of lakes and ponds, or in vernally moist, alkaline bottoms.
Origin: Native
Flowers: August-October
Growth Duration: Annual, Perennial
alpine aster (Oreostemma alpigenum)
Distribution: Occurring in the Cascades and Olympic mountains in Washington; British Columbia to California, east to Montana, Wyoming, and Nevada.
Habitat: Alpine meadows, slopes, and rocky areas.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring in the Cascades and Olympic mountains in Washington; British Columbia to California, east to Montana, Wyoming, and Nevada.
Habitat: Alpine meadows, slopes, and rocky areas.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
alpine leafybract aster (Symphyotrichum foliaceum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
arctic aster (Eurybia sibirica)
Distribution: Occurring west of the Cascades crest in Washington; Alaska to Washington, east to Northwest Territory, Nunavut, Alberta, Idaho, and Montana.
Habitat: Rocky outcroppings, open slopes, and meadows in the subalpine and alpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; Alaska to Washington, east to Northwest Territory, Nunavut, Alberta, Idaho, and Montana.
Habitat: Rocky outcroppings, open slopes, and meadows in the subalpine and alpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
bracted aster (Symphyotrichum bracteolatum)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Moist to wet sunny places, wet thickets, along streams and ditches
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Moist to wet sunny places, wet thickets, along streams and ditches
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Canby's leafybract aster (Symphyotrichum foliaceum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Columbian white-topped aster (Sericocarpus rigidus)
Distribution: Occurring west of the Cascades crest in lowland Washington; southern Vancouver Island to southwest Oregon.
Habitat: Prairies and open areas at low elevations.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in lowland Washington; southern Vancouver Island to southwest Oregon.
Habitat: Prairies and open areas at low elevations.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
Columbian whitetop aster (Sericocarpus rigidus)
Distribution: Occurring west of the Cascades crest in lowland Washington; southern Vancouver Island to southwest Oregon.
Habitat: Prairies and open areas at low elevations.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in lowland Washington; southern Vancouver Island to southwest Oregon.
Habitat: Prairies and open areas at low elevations.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
common California aster (Symphyotrichum chilense)
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California.
Habitat: Coastal, bluffs, grasslands, open slopes, salt marsh margins, and disturbed ground.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California.
Habitat: Coastal, bluffs, grasslands, open slopes, salt marsh margins, and disturbed ground.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
Cusick's American aster (Symphyotrichum foliaceum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Cusick's aster (Symphyotrichum foliaceum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Douglas' aster (Symphyotrichum subspicatum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana and Idaho.
Habitat: Moist woods, streambanks and seashores.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana and Idaho.
Habitat: Moist woods, streambanks and seashores.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Douglas's aster (Symphyotrichum subspicatum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana and Idaho.
Habitat: Moist woods, streambanks and seashores.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana and Idaho.
Habitat: Moist woods, streambanks and seashores.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Eaton's aster (Symphyotrichum bracteolatum)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Moist to wet sunny places, wet thickets, along streams and ditches
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Moist to wet sunny places, wet thickets, along streams and ditches
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Engelmann's aster (Eucephalus engelmannii)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Nevada, east to Alberta, Montana, Wyoming, and Colorado.
Habitat: Open woods and slopes, from foothills to high elevations in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Nevada, east to Alberta, Montana, Wyoming, and Colorado.
Habitat: Open woods and slopes, from foothills to high elevations in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
few-flowered aster (Canadanthus modestus)
Distribution: Widely distributed on both sides of the Cascades crest in the mountainous areas of Washington; Yukon Territory to Oregon, east to the northern Great Plains and Great Lakes region.
Habitat: Streambanks, pond and lake margins, and moist woods at middle-elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Widely distributed on both sides of the Cascades crest in the mountainous areas of Washington; Yukon Territory to Oregon, east to the northern Great Plains and Great Lakes region.
Habitat: Streambanks, pond and lake margins, and moist woods at middle-elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Geyer's aster (Symphyotrichum laeve)
Distribution: Occurring east of the Cascades crest in eastern Washington; Yukon Territory to California, east across most of North America to the Atlantic Coast.
Habitat: Open places in the plains and valleys to middle elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in eastern Washington; Yukon Territory to California, east across most of North America to the Atlantic Coast.
Habitat: Open places in the plains and valleys to middle elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
great northern aster (Canadanthus modestus)
Distribution: Widely distributed on both sides of the Cascades crest in the mountainous areas of Washington; Yukon Territory to Oregon, east to the northern Great Plains and Great Lakes region.
Habitat: Streambanks, pond and lake margins, and moist woods at middle-elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Widely distributed on both sides of the Cascades crest in the mountainous areas of Washington; Yukon Territory to Oregon, east to the northern Great Plains and Great Lakes region.
Habitat: Streambanks, pond and lake margins, and moist woods at middle-elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
hairy aster (Symphyotrichum pilosum)
Distribution: Occurring in scattered locations east of the Cascades crest in Washington; southwestern British Columbia to Washington, otherwise native from the U.S. Great Plains east to the Atlantic Coast.
Habitat: River cobbles, gravel, disturbed ground, and railroads.
Origin: Introduced from central and eastern North America
Flowers: August-October
Growth Duration: Perennial
Distribution: Occurring in scattered locations east of the Cascades crest in Washington; southwestern British Columbia to Washington, otherwise native from the U.S. Great Plains east to the Atlantic Coast.
Habitat: River cobbles, gravel, disturbed ground, and railroads.
Origin: Introduced from central and eastern North America
Flowers: August-October
Growth Duration: Perennial
Hall's aster (Symphyotrichum hallii)
Distribution: Occurring west of the Cascades crest in Washington; Washington to Oregon.
Habitat: Dry, open places in the valleys and plains.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; Washington to Oregon.
Habitat: Dry, open places in the valleys and plains.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
heath-leaved aster (Symphyotrichum ericoides)
Distribution: Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to Oregon, east to the Rocky Mountains, and further east across Canada and most of North America to the Atlantic Coast.
Habitat: Open, wet or dry places in the valleys and plains; tolerant of alkali.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to Oregon, east to the Rocky Mountains, and further east across Canada and most of North America to the Atlantic Coast.
Habitat: Open, wet or dry places in the valleys and plains; tolerant of alkali.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Henderson's aster (Symphyotrichum foliaceum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
hybrid aster (Symphyotrichum ×columbianum)
Distribution: Occurring east of the Cascades crest in Washington; southern British Columbia to eastern Oregon.
Origin: Native
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; southern British Columbia to eastern Oregon.
Origin: Native
Growth Duration: Perennial
intermountain aster (Symphyotrichum ascendens)
Distribution: Occurring east of the Cascades crest in Washington; Washington 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
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Washington 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
Growth Duration: Perennial
Jessica's aster (Symphyotrichum jessicae)
Distribution: Occurring east of the Cascades crest in eastern Washington; eastern Washington to adjacent western Idaho.
Habitat: Streambanks and open places.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in eastern Washington; eastern Washington to adjacent western Idaho.
Habitat: Streambanks and open places.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Klickitat aster (Eucephalus glaucescens)
Distribution: Endemic to the Mt. Adams area on both sides of the Cascades crest in Washington.
Habitat: Forest openings and meadows at low to middle elevations.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
Distribution: Endemic to the Mt. Adams area on both sides of the Cascades crest in Washington.
Habitat: Forest openings and meadows at low to middle elevations.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
Kootenai aster (Symphyotrichum foliaceum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
leafy aster (Symphyotrichum foliaceum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
leafy-bracted aster (Symphyotrichum foliaceum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
leafybract aster (Symphyotrichum foliaceum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
long-leaved aster (Symphyotrichum ascendens)
Distribution: Occurring east of the Cascades crest in Washington; Washington 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
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Washington 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
Growth Duration: Perennial
marsh aster (Symphyotrichum lanceolatum)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Moist meadows, sometimes where saline, shores, and open forest at low to middle elevations.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Moist meadows, sometimes where saline, shores, and open forest at low to middle elevations.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
New England aster (Symphyotrichum novae-angliae)
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; southwestern British Columbia to Oregon, east to the Rocky Mountains; native from central North America east to the Atlantic Coast.
Habitat: Roadsides and disturbed areas where somewhat moist.
Origin: Introduced from central and eastern North America
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; southwestern British Columbia to Oregon, east to the Rocky Mountains; native from central North America east to the Atlantic Coast.
Habitat: Roadsides and disturbed areas where somewhat moist.
Origin: Introduced from central and eastern North America
Flowers: July-September
Growth Duration: Perennial
New York aster (Symphyotrichum novi-belgii)
Habitat: Pond and lake margins at low to middle elevations.
Origin: Introduced from eastern North America
Flowers: August-September
Growth Duration: Perennial
Habitat: Pond and lake margins at low to middle elevations.
Origin: Introduced from eastern North America
Flowers: August-September
Growth Duration: Perennial
northern bog aster (Symphyotrichum boreale)
Distribution: Occurring east of the Cascades crest in northeastern Washington; Alaska to Washington, east across Canada and the northern U.S. to the Atlantic Coast.
Habitat: Cold bogs.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in northeastern Washington; Alaska to Washington, east across Canada and the northern U.S. to the Atlantic Coast.
Habitat: Cold bogs.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Olympic Mountain aster (Eucephalus paucicapitatus)
Distribution: Occurring in the Olympic Mountains in Washington; Vancouver Island, British Columbia to the Olympic Mountains in Washington.
Habitat: Open slopes, from middle to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring in the Olympic Mountains in Washington; Vancouver Island, British Columbia to the Olympic Mountains in Washington.
Habitat: Open slopes, from middle to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Oregon aster (Symphyotrichum bracteolatum)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Moist to wet sunny places, wet thickets, along streams and ditches
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Moist to wet sunny places, wet thickets, along streams and ditches
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Oregon white-topped aster (Sericocarpus oregonensis)
Distribution: Occurring in the Columbia River Gorge in Washington; Washington to California.
Habitat: Grasslands, forest openings, and savanna.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring in the Columbia River Gorge in Washington; Washington to California.
Habitat: Grasslands, forest openings, and savanna.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Pacific aster (Symphyotrichum chilense)
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California.
Habitat: Coastal, bluffs, grasslands, open slopes, salt marsh margins, and disturbed ground.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California.
Habitat: Coastal, bluffs, grasslands, open slopes, salt marsh margins, and disturbed ground.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
Palouse aster (Symphyotrichum jessicae)
Distribution: Occurring east of the Cascades crest in eastern Washington; eastern Washington to adjacent western Idaho.
Habitat: Streambanks and open places.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in eastern Washington; eastern Washington to adjacent western Idaho.
Habitat: Streambanks and open places.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Parry's aster (Symphyotrichum foliaceum)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, usually moist areas, low to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
rayless alkali aster (Symphyotrichum ciliatum)
Distribution: Occurring east of the Cascades crest in northern Washington; British Columbia to northern Washington, east across Canada and the northern U.S. to the Atlantic Coast.
Habitat: Moist to dry open forest and meadows.
Origin: Native
Flowers: August-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in northern Washington; British Columbia to northern Washington, east across Canada and the northern U.S. to the Atlantic Coast.
Habitat: Moist to dry open forest and meadows.
Origin: Native
Flowers: August-September
Growth Duration: Perennial
rayless annual aster (Symphyotrichum ciliatum)
Distribution: Occurring east of the Cascades crest in northern Washington; British Columbia to northern Washington, east across Canada and the northern U.S. to the Atlantic Coast.
Habitat: Moist to dry open forest and meadows.
Origin: Native
Flowers: August-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in northern Washington; British Columbia to northern Washington, east across Canada and the northern U.S. to the Atlantic Coast.
Habitat: Moist to dry open forest and meadows.
Origin: Native
Flowers: August-September
Growth Duration: Perennial
rigid white-topped aster (Sericocarpus rigidus)
Distribution: Occurring west of the Cascades crest in lowland Washington; southern Vancouver Island to southwest Oregon.
Habitat: Prairies and open areas at low elevations.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in lowland Washington; southern Vancouver Island to southwest Oregon.
Habitat: Prairies and open areas at low elevations.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
Rocky Mountain aster (Ionactis stenomeres)
Distribution: Occurring east of the Cascades crest in northeastern Washington; southeastern British Columbia to northeastern Washington, east to Idaho and Montana.
Habitat: Open hillsides and forest openings, from to fairly high elevations in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in northeastern Washington; southeastern British Columbia to northeastern Washington, east to Idaho and Montana.
Habitat: Open hillsides and forest openings, from to fairly high elevations in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
rough-leaved aster (Eurybia radulina)
Distribution: Occurring east of the Cascades crest and in the Columbia River Gorge in Washington; British Columbia to California.
Habitat: Rocky outcroppings, forest edges and openings at low to middle elevations.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest and in the Columbia River Gorge in Washington; British Columbia to California.
Habitat: Rocky outcroppings, forest edges and openings at low to middle elevations.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
rush aster (Symphyotrichum boreale)
Distribution: Occurring east of the Cascades crest in northeastern Washington; Alaska to Washington, east across Canada and the northern U.S. to the Atlantic Coast.
Habitat: Cold bogs.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in northeastern Washington; Alaska to Washington, east across Canada and the northern U.S. to the Atlantic Coast.
Habitat: Cold bogs.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
short rayed aster (Symphyotrichum frondosum)
Distribution: British Columbia to California, esat to Idaho, Wyoming, Colorado, and New Mexico.
Habitat: Moist, usually saline soil, often along the shores of lakes and ponds, or in vernally moist, alkaline bottoms.
Origin: Native
Flowers: August-October
Growth Duration: Annual, Perennial
Distribution: British Columbia to California, esat to Idaho, Wyoming, Colorado, and New Mexico.
Habitat: Moist, usually saline soil, often along the shores of lakes and ponds, or in vernally moist, alkaline bottoms.
Origin: Native
Flowers: August-October
Growth Duration: Annual, Perennial
short-rayed alkali aster (Symphyotrichum frondosum)
Distribution: British Columbia to California, esat to Idaho, Wyoming, Colorado, and New Mexico.
Habitat: Moist, usually saline soil, often along the shores of lakes and ponds, or in vernally moist, alkaline bottoms.
Origin: Native
Flowers: August-October
Growth Duration: Annual, Perennial
Distribution: British Columbia to California, esat to Idaho, Wyoming, Colorado, and New Mexico.
Habitat: Moist, usually saline soil, often along the shores of lakes and ponds, or in vernally moist, alkaline bottoms.
Origin: Native
Flowers: August-October
Growth Duration: Annual, Perennial
slender white aster (Symphyotrichum boreale)
Distribution: Occurring east of the Cascades crest in northeastern Washington; Alaska to Washington, east across Canada and the northern U.S. to the Atlantic Coast.
Habitat: Cold bogs.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in northeastern Washington; Alaska to Washington, east across Canada and the northern U.S. to the Atlantic Coast.
Habitat: Cold bogs.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
smooth aster (Symphyotrichum laeve)
Distribution: Occurring east of the Cascades crest in eastern Washington; Yukon Territory to California, east across most of North America to the Atlantic Coast.
Habitat: Open places in the plains and valleys to middle elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in eastern Washington; Yukon Territory to California, east across most of North America to the Atlantic Coast.
Habitat: Open places in the plains and valleys to middle elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
subalpine aster (Eurybia merita)
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California, east to Montana, Wyoming, Utah, and the northern Great Plains.
Habitat: Open, mesic or dry, rocky areas in the subalpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California, east to Montana, Wyoming, Utah, and the northern Great Plains.
Habitat: Open, mesic or dry, rocky areas in the subalpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
thickstem aster (Eurybia integrifolia)
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Montana, Wyoming, and Utah.
Habitat: Dry meadows, open coniferous forests, and riparian areas from middle elevations to the subalpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Montana, Wyoming, and Utah.
Habitat: Dry meadows, open coniferous forests, and riparian areas from middle elevations to the subalpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
tufted white prairie aster (Symphyotrichum ericoides)
Distribution: Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to Oregon, east to the Rocky Mountains, and further east across Canada and most of North America to the Atlantic Coast.
Habitat: Open, wet or dry places in the valleys and plains; tolerant of alkali.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to Oregon, east to the Rocky Mountains, and further east across Canada and most of North America to the Atlantic Coast.
Habitat: Open, wet or dry places in the valleys and plains; tolerant of alkali.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
western American aster (Symphyotrichum ascendens)
Distribution: Occurring east of the Cascades crest in Washington; Washington 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
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Washington 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
Growth Duration: Perennial
western aster (Symphyotrichum ascendens)
Distribution: Occurring east of the Cascades crest in Washington; Washington 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
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Washington 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
Growth Duration: Perennial
western aster (Symphyotrichum spathulatum)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Meadows and forest openings, from middle elevations to the subalpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Meadows and forest openings, from middle elevations to the subalpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
western meadow aster (Symphyotrichum campestre)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, Wyoming, and Colorado.
Habitat: Dry to moist forest openings, shorelines, and other open areas from low to middle elevations.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, Wyoming, and Colorado.
Habitat: Dry to moist forest openings, shorelines, and other open areas from low to middle elevations.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
western mountain aster (Symphyotrichum spathulatum)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Meadows and forest openings, from middle elevations to the subalpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Meadows and forest openings, from middle elevations to the subalpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
western showy aster (Eurybia conspicua)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to Oregon, east to the northern Rocky Mountains and northern Great Plains.
Habitat: Open woods, from foothills to middle elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to Oregon, east to the northern Rocky Mountains and northern Great Plains.
Habitat: Open woods, from foothills to middle elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
western willow aster (Symphyotrichum lanceolatum)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Moist meadows, sometimes where saline, shores, and open forest at low to middle elevations.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Moist meadows, sometimes where saline, shores, and open forest at low to middle elevations.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
white-topped aster (Sericocarpus rigidus)
Distribution: Occurring west of the Cascades crest in lowland Washington; southern Vancouver Island to southwest Oregon.
Habitat: Prairies and open areas at low elevations.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in lowland Washington; southern Vancouver Island to southwest Oregon.
Habitat: Prairies and open areas at low elevations.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
bigleaf avens (Geum macrophyllum)
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to Baja California, east to the Great Plains and east across Canada to the Atlantic Coast.
Habitat: Common in moist woods and meadows from sea level to subalpine.
Origin: Native
Flowers: April-August
Growth Duration: Perennial
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to Baja California, east to the Great Plains and east across Canada to the Atlantic Coast.
Habitat: Common in moist woods and meadows from sea level to subalpine.
Origin: Native
Flowers: April-August
Growth Duration: Perennial
large-leaved avens (Geum macrophyllum)
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to Baja California, east to the Great Plains and east across Canada to the Atlantic Coast.
Habitat: Common in moist woods and meadows from sea level to subalpine.
Origin: Native
Flowers: April-August
Growth Duration: Perennial
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to Baja California, east to the Great Plains and east across Canada to the Atlantic Coast.
Habitat: Common in moist woods and meadows from sea level to subalpine.
Origin: Native
Flowers: April-August
Growth Duration: Perennial
purple avens (Geum rivale)
Distribution: Occurring east of the Cascades crest in the northeastern counties in Washington; British Columbia to northeastern Washington, east to the Rocky Mountains, northern Great Plains, Great Lakes region and northeastern North America; circumboreal.
Habitat: Stream banks, lake shores, bogs and wet meadows from middle elevations to the subalpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in the northeastern counties in Washington; British Columbia to northeastern Washington, east to the Rocky Mountains, northern Great Plains, Great Lakes region and northeastern North America; circumboreal.
Habitat: Stream banks, lake shores, bogs and wet meadows from middle elevations to the subalpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Ross's avens (Geum rossii)
Distribution: Occurring east of the Cascades crest in the Wenatchee Mountains in Washington; Alaska to California, east to the Rocky Mountains, and eastward across northern Canada to Greenland; also in Far East Russia.
Habitat: Arctic tundra, high gravelly meadows and scree slopes.
Origin: Native
Flowers: June- August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in the Wenatchee Mountains in Washington; Alaska to California, east to the Rocky Mountains, and eastward across northern Canada to Greenland; also in Far East Russia.
Habitat: Arctic tundra, high gravelly meadows and scree slopes.
Origin: Native
Flowers: June- August
Growth Duration: Perennial
water avens (Geum rivale)
Distribution: Occurring east of the Cascades crest in the northeastern counties in Washington; British Columbia to northeastern Washington, east to the Rocky Mountains, northern Great Plains, Great Lakes region and northeastern North America; circumboreal.
Habitat: Stream banks, lake shores, bogs and wet meadows from middle elevations to the subalpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in the northeastern counties in Washington; British Columbia to northeastern Washington, east to the Rocky Mountains, northern Great Plains, Great Lakes region and northeastern North America; circumboreal.
Habitat: Stream banks, lake shores, bogs and wet meadows from middle elevations to the subalpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
yellow avens (Geum aleppicum)
Distribution: Occurring east of the Cascades crest in Washington; Alaska to California, east across Canada and the U.S., except the south-central and southeast regions, to the Atlantic Coast.
Habitat: Shores, streams, damp thickets, damp forests, wet meadows, and peatlands.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Alaska to California, east across Canada and the U.S., except the south-central and southeast regions, to the Atlantic Coast.
Habitat: Shores, streams, damp thickets, damp forests, wet meadows, and peatlands.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
water awl-wort (Subularia aquatica)
Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains and across the northern U.S. and Canada to the Atlantic Coast; circumboreal.
Habitat: Shallow water or mud flats of ponds, lakes, slow-moving streams, tidal flats, wet meadows, and marshes.
Origin: Native
Flowers: July-September
Growth Duration: Annual
Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains and across the northern U.S. and Canada to the Atlantic Coast; circumboreal.
Habitat: Shallow water or mud flats of ponds, lakes, slow-moving streams, tidal flats, wet meadows, and marshes.
Origin: Native
Flowers: July-September
Growth Duration: Annual
alpine azalea (Kalmia procumbens)
Distribution: Known in Washington from a single, historic collection in Skagit County; Alaska to Washington, east across Canada and eastern North America to Greenland; also in Europe and Asia.
Habitat: Alpine zone.
Origin: Native
Flowers: July-August
Distribution: Known in Washington from a single, historic collection in Skagit County; Alaska to Washington, east across Canada and eastern North America to Greenland; also in Europe and Asia.
Habitat: Alpine zone.
Origin: Native
Flowers: July-August
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 middle elevations to the subalpine.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
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 middle elevations to the subalpine.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
trailing azalea (Kalmia procumbens)
Distribution: Known in Washington from a single, historic collection in Skagit County; Alaska to Washington, east across Canada and eastern North America to Greenland; also in Europe and Asia.
Habitat: Alpine zone.
Origin: Native
Flowers: July-August
Distribution: Known in Washington from a single, historic collection in Skagit County; Alaska to Washington, east across Canada and eastern North America to Greenland; also in Europe and Asia.
Habitat: Alpine zone.
Origin: Native
Flowers: July-August
