15 genera
49 species, 9 subspecies and varieties
49 species, 9 subspecies and varieties
Show only taxa with photos
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Index to genera:
Asterella, Asterodon, Asterophora, Asterostroma, Canadanthus, Dieteria, Erigeron, Eucephalus, Eurybia, Ionactis, Mannia, Oreostemma, Sericocarpus, Solidago, SymphyotrichumAsterophora parasitica – silky piggyback
Description: Both Asterophora lycoperdoides and A. parasitica infect russulas and lacteriuses. The fruitbodies are relatively small, with a cap and stipe, either with distinct gills or thick, distant, and reduced ones. While both species are capable of producing basidiospores, they are noted for their production of asexual spores (chlamydospores). A. parasitica has a more conic, whitish, brownish, grayish or faintly lilac cap that forms large, smooth, elliptical chlamydospores on the gills.
Habitat: Woodlands
Substrate: Old fungal fruitbodies of russulas and lacterius
Description: Both Asterophora lycoperdoides and A. parasitica infect russulas and lacteriuses. The fruitbodies are relatively small, with a cap and stipe, either with distinct gills or thick, distant, and reduced ones. While both species are capable of producing basidiospores, they are noted for their production of asexual spores (chlamydospores). A. parasitica has a more conic, whitish, brownish, grayish or faintly lilac cap that forms large, smooth, elliptical chlamydospores on the gills.
Habitat: Woodlands
Substrate: Old fungal fruitbodies of russulas and lacterius
Canadanthus modestus – few-flowered aster, great northern aster
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
Dieteria canescens – hoary-aster
Distribution: Occurring east of the Cascades crest in Washington; southern British Columbia to southern California, east to the Great Plains.
Habitat: Dry, open places in the plains and foothills, occasionally extending into the mountains.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; southern British Columbia to southern California, east to the Great Plains.
Habitat: Dry, open places in the plains and foothills, occasionally extending into the mountains.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
• var. incana – hoary-aster, tall hoary-aster
Erigeron annuus – annual fleabane, eastern daisy fleabane, sweet scabrous fleabane
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Idaho and Utah, not recorded for Montana, also from Great Plains east to the Atlantic.
Habitat: Moist, disturbed areas from the lowlands to middle elevations.
Origin: Native? Introduced in OR, status as a native in BC uncertain
Flowers: June-September
Growth Duration: Annual
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Idaho and Utah, not recorded for Montana, also from Great Plains east to the Atlantic.
Habitat: Moist, disturbed areas from the lowlands to middle elevations.
Origin: Native? Introduced in OR, status as a native in BC uncertain
Flowers: June-September
Growth Duration: Annual
Erigeron glacialis – glacier fleabane
Distribution: Widely distributed in the mountains throughout Washington; Alaska to California, east to the Rocky Mountains.
Habitat: Moist, open areas at mid- to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Widely distributed in the mountains throughout Washington; Alaska to California, east to the Rocky Mountains.
Habitat: Moist, open areas at mid- to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Erigeron peregrinus – wandering fleabane
Distribution: Occurring west of the Cascades crest on the Olympic Peninsula and in the North Cascades; Alaska to Washington, east to Alberta.
Habitat: Low elevation bogs and wetlands, and subalpine and alpine meadows.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest on the Olympic Peninsula and in the North Cascades; Alaska to Washington, east to Alberta.
Habitat: Low elevation bogs and wetlands, and subalpine and alpine meadows.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Eucephalus engelmannii – Engelmann's aster
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
Eucephalus glaucescens – Klickitat aster
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
Eucephalus ledophyllus – Cascade aster
Distribution: Occurring chiefly west of the Cascades crest in Washington; northern Washington to California.
Habitat: Meadows and open woods, from middle elevations in the mountains to the subalpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring chiefly west of the Cascades crest in Washington; northern Washington to California.
Habitat: Meadows and open woods, from middle elevations in the mountains to the subalpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
• var. ledophyllus – Cascade aster
Eucephalus paucicapitatus – Olympic Mountain aster
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
Eurybia conspicua – western showy aster
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
Eurybia integrifolia – thickstem aster
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
Eurybia merita – subalpine aster
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
Eurybia radulina – rough-leaved aster
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
Eurybia sibirica – arctic aster
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
Ionactis stenomeres – Rocky Mountain ankle-aster, Rocky Mountain aster
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
Oreostemma alpigenum – alpine aster
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
• var. alpigenum – alpine aster, tundra mountaincrown
Sericocarpus oregonensis – Oregon white-topped aster
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
• ssp. oregonensis – Oregon white-topped aster
Sericocarpus rigidus – Columbian white-topped aster, Columbian whitetop aster, rigid white-topped aster
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
Solidago lepida – western Canada goldenrod
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, and east across Canada to the Atlantic Coast.
Habitat: Dry to moist areas in meadows and riparian areas, from low to middle elevations.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, and east across Canada to the Atlantic Coast.
Habitat: Dry to moist areas in meadows and riparian areas, from low to middle elevations.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
Solidago missouriensis – Missouri goldenrod
Distribution: Occurring on both sides of the Cascades crest in Washington; central British Columbia to Oregon, east to the Rocky Mountains, Great Plains, and midwestern U.S.
Habitat: Rather dry, open places, from the valleys and plains to fairly high elevations in the mountains.
Origin: Native
Flowers: June-October
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; central British Columbia to Oregon, east to the Rocky Mountains, Great Plains, and midwestern U.S.
Habitat: Rather dry, open places, from the valleys and plains to fairly high elevations in the mountains.
Origin: Native
Flowers: June-October
Growth Duration: Perennial
Solidago multiradiata – northern goldenrod, Rocky Mountain goldenrod
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Oregon, Nevada, and Arizona, east to the Rocky Mountains, Great Plains, Great Lakes region, and midwestern U.S.
Habitat: Mountain meadows and open slopes at high elevations
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Oregon, Nevada, and Arizona, east to the Rocky Mountains, Great Plains, Great Lakes region, and midwestern U.S.
Habitat: Mountain meadows and open slopes at high elevations
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Solidago simplex var. simplex – sticky goldenrod
Distribution: Occurring west of the Cascades crest and in the Olympic Mountains in Washington; Alaska to Oregon, east to the Rocky Mountains, northern Great Plains, Great Lakes region, and northeastern North America.
Habitat: Open areas from the lowlands to middle elevations in the mountains, rarely in the alpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest and in the Olympic Mountains in Washington; Alaska to Oregon, east to the Rocky Mountains, northern Great Plains, Great Lakes region, and northeastern North America.
Habitat: Open areas from the lowlands to middle elevations in the mountains, rarely in the alpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Solidago spathulata – coast goldenrod, dune goldenrod
Distribution: Occurring west of the Cascades crest in southwestern Washington; southwestern Washington to California.
Habitat: Coastal sand dunes and headlands.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in southwestern Washington; southwestern Washington to California.
Habitat: Coastal sand dunes and headlands.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Symphyotrichum ×amethystinum – amethyst aster, hybrid aster
Origin: Introduced
Growth Duration: Perennial
Origin: Introduced
Growth Duration: Perennial
Symphyotrichum ascendens – intermountain aster, long-leaved aster, western American aster, western aster
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
Symphyotrichum boreale – northern bog aster, rush aster, slender white aster
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
Symphyotrichum bracteolatum – bracted aster, Eaton's aster, Oregon aster
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
Symphyotrichum campestre – western meadow aster
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
Symphyotrichum chilense – common California aster, Pacific aster
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
Symphyotrichum ciliatum – alkali American aster, rayless alkali aster, rayless annual aster
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
Symphyotrichum ericoides – heath-leaved aster, tufted white prairie aster
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
• var. pansum – little gray aster, tufted white prairie aster, white heath aster
Symphyotrichum foliaceum – alpine leafybract aster, Canby's leafybract aster, Cusick's American aster, Cusick's aster, Henderson's aster, Kootenai aster, leafy aster, leafy-bracted aster, Parry's aster
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
Symphyotrichum frondosum – alkali aster, short rayed aster, short-rayed alkali aster
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
Symphyotrichum hallii – Hall's aster
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
Symphyotrichum jessicae – Jessica's aster, Palouse aster
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
Symphyotrichum laeve – Geyer's aster, smooth aster
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
• var. geyeri – Geyer's smooth aster
Symphyotrichum lanceolatum – marsh aster, western willow aster
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
• var. hesperium – lance-leaved aster, panicled aster, white panicled aster
Symphyotrichum novae-angliae – New England aster
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
Symphyotrichum novi-belgii – New York aster
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
Symphyotrichum pilosum – hairy aster
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
• var. pilosum – hairy aster
Symphyotrichum spathulatum – western aster, western mountain aster
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
Symphyotrichum subspicatum – Douglas' aster, Douglas's aster
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
