Includes all flowering plants, conifers, ferns and fern-allies.
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324 common names
Show only taxa with photos
Index to common names:
gaillardia,
galingale,
galinsoga,
garlic,
gaura,
gentian,
geranium,
germander,
giant-hyssop,
gilia,
gily-flower,
ginger,
giraffehead,
glacier-lily,
glandweed,
glehnia,
globeflower,
globemallow,
glory,
glyceria,
gnome-plant,
goat-chicory,
goatsbeard,
goblin,
godetia,
gold-star,
goldaster,
golden-banner,
golden-pea,
golden-saxifrage,
goldenaster,
goldenrod,
goldentop,
goldenweed,
goldfields,
goldthread,
goose-grass,
gooseberry,
goosefoot,
Goosefoot,
goosefoot,
goosegrass,
gorse,
goutweed,
grape,
grape-hyacinth,
grape-vine,
grapefern,
grass,
grass-of-parnassus,
Grass-of-Parnassus,
grass-of-parnassus,
Grass-of-Parnassus,
grass-of-parnassus,
Grass-of-Parnassus,
grass-widow,
grasswort,
greasewood,
green-bush,
green-gentian,
greenweed,
gromwell,
grooveburr,
ground,
ground-cedar,
ground-cherry,
ground-pine,
groundcone,
groundivy,
groundsel,
groundsmoke,
grouseberry,
gruvelia,
guaco,
gumbo lomatium,
gumweed
(Gaillardia aristata)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to Oregon.
Habitat: Dry, open areas at low to middle elevations.
Origin: Native
Flowers: May-September
Growth Duration: Perennial
(Cyperus fuscus)
Origin: Introduced
(Galinsoga quadriradiata)
Distribution: Occurring west of the Cascades crest in lowland western Washington; British Columbia to Washington, east across southern Canada to central and eastern North America.
Habitat: Fields, roadsides, gardens, wastelots, and other disturbed areas at low elevations.
Origin: Introduced from Central and South America
Flowers: June-October
Growth Duration: Annual
(Galinsoga quadriradiata)
Distribution: Occurring west of the Cascades crest in lowland western Washington; British Columbia to Washington, east across southern Canada to central and eastern North America.
Habitat: Fields, roadsides, gardens, wastelots, and other disturbed areas at low elevations.
Origin: Introduced from Central and South America
Flowers: June-October
Growth Duration: Annual
(Allium vineale)
Distribution: Occurring chiefly west of the Cascades crest in Washington; southwestern British Columbia to California; also in eastern North America.
Habitat: Disturbed areas.
Origin: Introduced from Europe
Flowers: June-August
Growth Duration: Perennial
(Allium nevii)
Distribution: Occurring east of the Cascades crest in central Washington; Chelan County, Washington to Wasco County, Oregon
Habitat: Vernally wet meadows and rocky soils at low to middle elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Allium vineale)
Distribution: Occurring chiefly west of the Cascades crest in Washington; southwestern British Columbia to California; also in eastern North America.
Habitat: Disturbed areas.
Origin: Introduced from Europe
Flowers: June-August
Growth Duration: Perennial
(Oenothera curtiflora)
Distribution: Occurring east of the Cascades crest in Washington; widely distributed throughout North America.
Habitat: Open, sandy, rocky, often disturbed places.
Origin: Introduced
Flowers: June-September
Growth Duration: Annual
(Gentiana calycosa)
Distribution: Occurring on both sides of the Cascades crest in the Cascades, Olympics and Blue Mountains of Washington; British Columbia to California, east to Alberta, Wyoming, and Utah.
Habitat: Subalpine to alpine meadows.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
(Gentiana glauca)
Distribution: In the North Cascades of Washington; Alaska south to Washington and Montana.
Habitat: Tundra and alpine meadows.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Gentiana sceptrum)
Distribution: Occurring west of the Cascades crest in Washington; British Columbia south to northwest California.
Habitat: Bogs and wet places, especially along the coast, at low elevations.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Comastoma tenellum)
Distribution: Known only from Okanogan County in Washington; Alaska south to California, east to the northern Rocky Mountains; circumpolar.
Habitat: Alpine areas, typically where moist.
Origin: Native
Flowers: June-August
Growth Duration: Annual
(Gentiana calycosa)
Distribution: Occurring on both sides of the Cascades crest in the Cascades, Olympics and Blue Mountains of Washington; British Columbia to California, east to Alberta, Wyoming, and Utah.
Habitat: Subalpine to alpine meadows.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
(Gentianella amarella)
Distribution: Across the northern part of Washington on both sides of the Cascades; Alaska to California, east to Minnasota and New Mexico.
Habitat: Moist areas, sea level to mid-elevations in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Annual, Biennial
(Gentiana affinis)
Distribution: East of the Cascades in Washington; British Columbia south to California and Arizona.
Habitat: Damp soil and meadowlands, from the valleys and foothills to well up in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Gentiana affinis)
Distribution: East of the Cascades in Washington; British Columbia south to California and Arizona.
Habitat: Damp soil and meadowlands, from the valleys and foothills to well up in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Gentiana affinis)
Distribution: East of the Cascades in Washington; British Columbia south to California and Arizona.
Habitat: Damp soil and meadowlands, from the valleys and foothills to well up in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Comastoma tenellum)
Distribution: Known only from Okanogan County in Washington; Alaska south to California, east to the northern Rocky Mountains; circumpolar.
Habitat: Alpine areas, typically where moist.
Origin: Native
Flowers: June-August
Growth Duration: Annual
(Comastoma tenellum)
Distribution: Known only from Okanogan County in Washington; Alaska south to California, east to the northern Rocky Mountains; circumpolar.
Habitat: Alpine areas, typically where moist.
Origin: Native
Flowers: June-August
Growth Duration: Annual
(Gentiana sceptrum)
Distribution: Occurring west of the Cascades crest in Washington; British Columbia south to northwest California.
Habitat: Bogs and wet places, especially along the coast, at low elevations.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Gentiana douglasiana)
Distribution: Narrow distribution in Cascade and Olympic Mountains of Washington; Alaska south to Washington.
Habitat: Bogs and tundra.
Origin: Native
Flowers: July-September
Growth Duration: Annual
(Geranium carolinianum)
Distribution: Widely distributed throughout much of Washington; ranging throughout nearly all of North America.
Habitat: Woodlands and waste places, tending to be weedy.
Origin: Native
Flowers: April-July
Growth Duration: Annual
(Geranium molle)
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California, east to Idaho and Montana, also in the central U.S. and northeastern North America.
Habitat: Disturbed areas including roadsides, moist ground in waste places and lawns, prairies, balds, and forest edge.
Origin: Introduced from Europe
Flowers: April-September
Growth Duration: Annual
(Geranium ibericum)
Origin: Introduced
(Geranium purpureum)
Distribution: Occurring west of the Cascades crest and in the Columbia River Gorge in Washington; Washington to California.
Habitat: Roadsides, fields, lawns, wastelots, and other disturbed open areas at low elevation.
Origin: Introduced from Europe
Flowers: May-June
Growth Duration: Annual
(Geranium rotundifolium)
Origin: Introduced
(Geranium ibericum)
Origin: Introduced
(Geranium oreganum)
Distribution: West of the Cascades in southwestern Washington; south to northern California.
Habitat: Meadows and woodlands.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Geranium viscosissimum)
Distribution: Widely distributed east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains..
Habitat: Moist meadows and slopes, and forest openings, from the foothills to the middle elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Geranium oreganum)
Distribution: West of the Cascades in southwestern Washington; south to northern California.
Habitat: Meadows and woodlands.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Geranium richardsonii)
Distribution: East of the Cascades in Washington; British Columbia south to southern California and New Mexico.
Habitat: Mostly in partial shade, from the lowlands to well up in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Teucrium canadense)
Distribution: East of the Cascades in Washington; throughout the United States and adjacent portions of Canada and Mexico.
Habitat: Stream banks and moist bottom lands, mostly at low elevations.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Agastache urticifolia)
Distribution: East of the Cascades in Washington; British Columbia to California, east to Colorado.
Habitat: Dry open slopes and draws, foothills to mid-elevations in the mountains
Origin: Native
Flowers: May-August
Growth Duration: Perennial
(Agastache occidentalis)
Distribution: East slopes of the Cascades, Chelan to Yakima Counties, Washington; south to Oregon.
Habitat: Dry, open, often rocky slopes at low to moderate elevations.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Ipomopsis congesta)
Distribution: Occurring on the eastern border of Washington; Washington south to California, east to the Great Plains.
Habitat: Dry, open areas at low to middle elevations.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
(Gilia capitata)
Distribution: Occurring chiefly west of the Cascades in Washington, but also in the Columbia River Gorge; Vancouver Island, British Columbia south to California, east to Idaho.
Habitat: Dry, open areas at lower elevations.
Origin: Native
Flowers: June-July
Growth Duration: Annual
(Lathrocasis tenerrima)
Distribution: Known from Okanogan, Douglas, and Chelan counties in Washington; British Columbia south to California, east to Montana, Idaho, Wyoming, Utah and Nevada.
Habitat: Rocky outcroppings, Ponderosa pine forest openings, and montane shrub-steppe communities.
Origin: Native
Flowers: May-June
Growth Duration: Annual
(Gilia capitata)
Distribution: Occurring chiefly west of the Cascades in Washington, but also in the Columbia River Gorge; Vancouver Island, British Columbia south to California, east to Idaho.
Habitat: Dry, open areas at lower elevations.
Origin: Native
Flowers: June-July
Growth Duration: Annual
(Aliciella leptomeria)
Distribution: Occurring east of the Cascades crest in Washington; Washington south to California, east to the Rocky Mountains.
Habitat: Open, sandy and rocky areas in sagebrush steppe from low to middle elevations.
Origin: Native
Flowers: April-June
Growth Duration: Annual
(Ipomopsis congesta)
Distribution: Occurring on the eastern border of Washington; Washington south to California, east to the Great Plains.
Habitat: Dry, open areas at low to middle elevations.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
(Gilia sinuata)
Distribution: Occurring east of the Cascades crest in Washington; Washington to southeast California, east to Idaho and Wyoming.
Habitat: Dry, open, and usually sandy places in the foothills and plains.
Origin: Native
Flowers: April-July
Growth Duration: Annual
(Gilia sinuata)
Distribution: Occurring east of the Cascades crest in Washington; Washington to southeast California, east to Idaho and Wyoming.
Habitat: Dry, open, and usually sandy places in the foothills and plains.
Origin: Native
Flowers: April-July
Growth Duration: Annual
(Microgilia minutiflora)
Distribution: Occurring east of the Cascades crest in Washington; south-central British Columbia to eastern Oregon, east to western Montana and southern Idaho.
Habitat: Dry, sandy places at low elev, often with sagebrush.
Origin: Native
Flowers: April-June
Growth Duration: Annual
(Aliciella lottiae)
Distribution: Occurring east of the Cascades crest in the south-central portion of Washington; Washington south to California, east to Idaho and Utah.
Habitat: Open, sandy areas in sagebrush-steppe at low to middle elevations.
Origin: Native
Flowers: April-June
Growth Duration: Annual
(Gilia sinuata)
Distribution: Occurring east of the Cascades crest in Washington; Washington to southeast California, east to Idaho and Wyoming.
Habitat: Dry, open, and usually sandy places in the foothills and plains.
Origin: Native
Flowers: April-July
Growth Duration: Annual
(Aliciella leptomeria)
Distribution: Occurring east of the Cascades crest in Washington; Washington south to California, east to the Rocky Mountains.
Habitat: Open, sandy and rocky areas in sagebrush steppe from low to middle elevations.
Origin: Native
Flowers: April-June
Growth Duration: Annual
(Gilia inconspicua)
Distribution: East of the Cascades in Washington; Washington south to California, east to Idaho, Colorado, and New Mexico.
Habitat: Rocky and sandy open areas in sagebrush desert.
Origin: Native
Flowers: April-June
Growth Duration: Annual
(Asarum caudatum)
Distribution: Widely distributed throughout Washington except in central lowlands; British Columbia to California, east to Idaho and Montana.
Habitat: Moist, shady woods at low to mid-elevations in the mountains.
Origin: Native
Flowers: April-July
Growth Duration: Perennial
(Lamium amplexicaule)
Distribution: Both sides of the Cascades in Washington; introduced and widespread in North America; Eurasia and North Africa.
Habitat: Weed in distrurbed areas, fields, lawns.
Origin: Introduced from Eurasia
Flowers: April-July
Growth Duration: Annual, Biennial
(Erythronium grandiflorum)
Distribution: Widely distributed in mountainous and forested areas across Washington; British Columbia to Oregon, east to the Rocky Mountains.
Habitat: Balds and forest openings from sea level to the subalpine.
Origin: Native
Flowers: March-August
Growth Duration: Perennial
(Bellardia viscosa)
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California; also in south-central U.S.
Habitat: Roadsides, fields, pastures, ditches, wastelots, and other disturbed open areas at low elevations.
Origin: Introduced from Eurasia.
Flowers: June-August
Growth Duration: Annual
(Glehnia leiocarpa)
Distribution: Occurring west of the Cascades crest in the coastal counties in Washington; coastal Alaska to coastal northern California.
Habitat: Sandy beaches and dunes along the coast.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Trollius albiflorus)
Distribution: Chiefly in the Olympics and Cascades mountains of Washington; British Columbia to Washington, east to the Rocky Mountains.
Habitat: Subalpine and alpine wet meadows and slopes, blooming as the snow recedes.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
(Sphaeralcea grossulariifolia)
Distribution: Occurring east of the Cascades crest in Washington; south-central Washington to Nevada, east to southern Idaho and Utah.
Habitat: Sagebrush desert to low elevations in the mountains.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Iliamna longisepala)
Distribution: Occurring east of the Cascades crest in Washington, where endemic to Chelan and Douglas counties.
Habitat: From sagebrush desert to ponderosa pine forest openings at low elevations.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Sphaeralcea munroana)
Distribution: Widely distributed east of the Cascades crest in Washington; south-central British Columbia to California, east to Montana, Wyoming, and Colorado.
Habitat: Desert plains to open lower mountain slopes.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
(Iliamna rivularis)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to Oregon, east to Montana and Colorado.
Habitat: Somewhat moist areas, often along seasonal stream banks, foothills to forest openings at mid-elevations.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Sphaeralcea munroana)
Distribution: Widely distributed east of the Cascades crest in Washington; south-central British Columbia to California, east to Montana, Wyoming, and Colorado.
Habitat: Desert plains to open lower mountain slopes.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
(Calystegia soldanella)
Distribution: Occurring west of the Cascades crest along the coast in Washington; British Columbia to San Diego County, California.
Habitat: Coastal beaches and sand dunes, often extending down to the high tide level.
Origin: Native
Flowers: April-September
Growth Duration: Perennial
(Glyceria declinata)
Origin: Introduced
(Hemitomes congestum)
Distribution: West of the Cascades in Washington; Vancouver Island and mainland British Columbia south to Monterey County, California.
Habitat: Rich humus in damp coniferous forests at mid-elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(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
(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
(Tragopogon miscellus)
Distribution: Occurring east of the Cascades crest in eastern Washington; eastern Washington and adjacent Idaho, Wyoming, and Arizona.
Habitat: Fields, roadsides, and other disturbed, open areas.
Origin: Native
Flowers: May-June
Growth Duration: Biennial
(Tragopogon mirus)
Distribution: Occurring east of the Cascades crest in south-central and eastern Washington; eastern Washington and adjacent western Idaho, also occurring in Arizona.
Habitat: Dry, open areas in the foothills.
Origin: Native
Flowers: May-June
Growth Duration: Biennial
(Aruncus dioicus)
Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska to California, east to Alberta, also in the eastern half of North America.
Habitat: Moist forest and forest edge from low elevations to the subalpine.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Tragopogon floccosus)
Distribution: Occurring east of the Cascades crest in eastern Washington, where known only from Whitman County. eastern Washington and adjacent western Idaho.
Habitat: Disturbed areas, fields, roadsides.
Origin: Introduced
Flowers: July-August
Growth Duration: Biennial, Perennial
(Botrychium montanum)
Distribution: British Columbia to California, east to Montana
Origin: Native
Growth Duration: Perennial
(Clarkia gracilis)
Distribution: Occurring west of the Cascades crest and in the Columbia River Gorge in Washington; Washington south to California.
Habitat: Fairly dry, open areas at low elevations.
Origin: Native
Flowers: June-July
Growth Duration: Annual
(Crocidium multicaule)
Distribution: Occurring on both sides the Cascades crest and in the Columbia River Gorge in Washington; British Columbia to California, east to Idaho.
Habitat: Dry, open areas from low to middle elevations, especially common in sagebrush.
Origin: Native
Flowers: March-May
Growth Duration: Annual
(Heterotheca villosa)
Distribution: Widespread in Washington and Oregon, chiefly east of the Cascades; east to Michigan
Habitat: Open, sunny areas, often in sandy soil, low to moderate elevations
Origin: Native
Flowers: June-September
Growth Duration: Perennial
(Thermopsis montana)
Distribution: Occurring on both sides of the Cascades crest in Washington, but only occurring in the far western and eastern counties; British Columbia to California, east to the Rocky Mountains.
Habitat: Sandy, well-drained soil to wet meadowland, low to moderate elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Thermopsis montana)
Distribution: Occurring on both sides of the Cascades crest in Washington, but only occurring in the far western and eastern counties; British Columbia to California, east to the Rocky Mountains.
Habitat: Sandy, well-drained soil to wet meadowland, low to moderate elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Chrysosplenium tetrandrum)
Distribution: In Washington known only from the north-central part of the state: Alaska south to Washington, east to Montana and Colorado in the U.S., east across Canada to the Atlantic Coast; circumpolar.
Habitat: Rock crevices and wet banks and slopes, high elevations in our area.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Chrysosplenium glechomifolium)
Distribution: West of the Cascades and mostly along the coast, British Columbia south to northwest California.
Habitat: Moist, usually swampy places, mostly at low elevations.
Origin: Native
Flowers: Late March - May
Growth Duration: Perennial
(Heterotheca oregona)
Distribution: British Columbia to California, east base of the Cascades to the coast.
Habitat: Sand and gravel bars along rivers, low to moderate elevations.
Origin: Native
Flowers: June-Sept.
Growth Duration: Perennial
(Solidago elongata)
Distribution: Occurring on both sides of the Cascades crest in Washington; Washington to California.
Habitat: Sandy or gravelly open areas or thickets at low to middle elevations.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Euthamia graminifolia)
Distribution: Occurring east of the Cascades crest in Washington; southern British Columbia to Oregon, east to Idaho; native from the Great Plains to the Atlantic Coast.
Habitat: Lowland fields, lakeshores, and wastelots.
Origin: Introduced from central and eastern North America
Flowers: July-September
Growth Duration: Perennial
(Euthamia graminifolia)
Distribution: Occurring east of the Cascades crest in Washington; southern British Columbia to Oregon, east to Idaho; native from the Great Plains to the Atlantic Coast.
Habitat: Lowland fields, lakeshores, and wastelots.
Origin: Introduced from central and eastern North America
Flowers: July-September
Growth Duration: Perennial
(Solidago altissima)
Distribution: Occurring east of the Cascades crest in Washington; Alaska to Oregon where introduced, otherwise native from Great Plains to Atlantic Coast.
Habitat: Disturbed areas in sagebrush desert.
Origin: Introduced
Flowers: August-October
Growth Duration: Perennial
(Solidago altissima)
Distribution: Occurring east of the Cascades crest in Washington; Alaska to Oregon where introduced, otherwise native from Great Plains to Atlantic Coast.
Habitat: Disturbed areas in sagebrush desert.
Origin: Introduced
Flowers: August-October
Growth Duration: Perennial
(Solidago missouriensis)
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)
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 multiradiata)
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)
Distribution: Occurring west of the Cascades crest in Washington; Alaska to Oregon, east to the Rocky Mountains, northern Great Plains, Great Lakes region, and northeastern North America.
Habitat: Open, slightly moist areas from coastal dunes to alpine meadows.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
(Solidago elongata)
Distribution: Occurring on both sides of the Cascades crest in Washington; Washington to California.
Habitat: Sandy or gravelly open areas or thickets at low to middle elevations.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Solidago lepida)
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
(Euthamia occidentalis)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and Great Plains of the U.S.
Habitat: Stream and river banks, lake and pond margins, wetlands, and other moist areas at low to middle elevations.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
(Euthamia occidentalis)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and Great Plains of the U.S.
Habitat: Stream and river banks, lake and pond margins, wetlands, and other moist areas at low to middle elevations.
Origin: Native
Flowers: July-October
Growth Duration: Perennial
(Ericameria bloomeri)
Distribution: Occurring east of the Cascades crest in Washington; southern British Columbia to California, east to Idaho and Nevada.
Habitat: Dry, rocky slopes and open woods, from the foothills to moderate elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Ericameria resinosa)
Distribution: Occurring east of the Cascades crest in Washington; Washington to Oregon, east to Idaho.
Habitat: Basalt cliffs and rock crevices in the plains and foothills, extending up to 6000 feet on the east slope of the Cascades.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Ericameria resinosa)
Distribution: Occurring east of the Cascades crest in Washington; Washington to Oregon, east to Idaho.
Habitat: Basalt cliffs and rock crevices in the plains and foothills, extending up to 6000 feet on the east slope of the Cascades.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Ericameria greenei)
Distribution: Occurring east of the Cascade crest in Washington; Washington to California, east to Idaho.
Habitat: Dry, rocky slopes and open forests from middle elevations to the subalpine.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
(Ericameria greenei)
Distribution: Occurring east of the Cascade crest in Washington; Washington to California, east to Idaho.
Habitat: Dry, rocky slopes and open forests from middle elevations to the subalpine.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
(Pyrrocoma hirta)
Distribution: Occurring east of the Cascades crest in central Washington; central Washington, the mountains of northeast Oregon and adjacent Idaho, south to northeast California.
Habitat: Meadows and open or sparsely wooded slopes in the foothills to middle elevations in the mountains.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
(Columbiadoria hallii)
Distribution: Occurring in the east end of the Columbia River Gorge in Washington; Washington to Oregon.
Habitat: Dry, open or sparsely wooded slopes at low elevations.
Origin: Native
Flowers: August-October
Growth Duration: Perennial
(Pyrrocoma carthamoides)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Idaho, Montana, Wyoming, and Nevada.
Habitat: Open hillsides, meadows and forest openings from the lowlands to middle elevations in the mountains.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
(Tonestus lyallii)
Distribution: Occurring in the Olympics and Cascades mountains in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Mountain meadows and rocky slopes, subalpine and alpine.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Nestotus stenophyllus)
Distribution: Occurring east of the Cascades crest in central Washington; Washington to California, east to Idaho and Nevada.
Habitat: Dry, rocky soil, often with sagebrush.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Pyrrocoma liatriformis)
Distribution: Occurring east of the Cascades crest in eastern Washington; eastern Washington and adjacent Idaho.
Habitat: Grassy hillsides and prairies.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
(Pyrrocoma scaberula)
Distribution: Occurring in the southeastern corner of Washington; southeastern Washington to adjacent Oregon and Idaho.
Habitat: Grasslands and open hillsides at low to middle elevations.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
(Ericameria bloomeri)
Distribution: Occurring east of the Cascades crest in Washington; southern British Columbia to California, east to Idaho and Nevada.
Habitat: Dry, rocky slopes and open woods, from the foothills to moderate elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Pyrrocoma hirta)
Distribution: Occurring east of the Cascades crest in central Washington; central Washington, the mountains of northeast Oregon and adjacent Idaho, south to northeast California.
Habitat: Meadows and open or sparsely wooded slopes in the foothills to middle elevations in the mountains.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
(Stenotus lanuginosus)
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Idaho, Montana, and Nevada.
Habitat: Open, dry, often rocky places, from sagebrush desert to ponderosa pine forest openings at middle elevations in the mountains.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Lasthenia minor)
Distribution: Occurring west of the Cascades crest in lowland western Washington, where known from a single collection in Skagit County; central California.
Habitat: Coastal balds and grasslands.
Origin: Native
Flowers: Arpril-May
Growth Duration: Annual
(Lasthenia maritima)
Distribution: Occurring west of the Cascades crest along the coast in Washington; southern British Columbia to California.
Habitat: Coastal islands, headlands, and seabird nesting sites.
Origin: Native
Flowers: May-July
Growth Duration: Annual
(Lasthenia maritima)
Distribution: Occurring west of the Cascades crest along the coast in Washington; southern British Columbia to California.
Habitat: Coastal islands, headlands, and seabird nesting sites.
Origin: Native
Flowers: May-July
Growth Duration: Annual
(Lasthenia glaberrima)
Distribution: Occurring west of the Cascades crest and in the Columbia River Gorge in Washington; southern Washington to central California.
Habitat: Wet or muddy ground at low elevations, including venral pools.
Origin: Native
Flowers: May-July
Growth Duration: Annual
(Coptis aspleniifolia)
Distribution: Occurring west of the Cascades crest in Washington; Alaska south along the coast to Washington.
Habitat: Moist woods and bogs at low elevations.
Origin: Native
Flowers: April-May
Growth Duration: Perennial
(Coptis occidentalis)
Distribution: Occurring in the northeastern corner of Washington; Adjacent British Columbia east to Idaho and Montana.
Habitat: Moist woods.
Origin: Native
Flowers: April-May
Growth Duration: Perennial
(Coptis laciniata)
Distribution: Occurring in the southwestern region of Washington; Washington south to California.
Habitat: Moist woods at low elevations.
Origin: Native
Flowers: April-August
Growth Duration: Perennial
(Coptis trifolia)
Distribution: Known from extreme northeastern region of Washington; Alaska to Washington, Idaho and Montana, east across northern North America to the Atlantic; also in Greenland and eastern Eurasia.
Habitat: Deep woodland, often where swampy.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
(Coptis occidentalis)
Distribution: Occurring in the northeastern corner of Washington; Adjacent British Columbia east to Idaho and Montana.
Habitat: Moist woods.
Origin: Native
Flowers: April-May
Growth Duration: Perennial
(Galium aparine)
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Variety of habitats, sea level to mid-elevations in the mountains.
Origin: Native
Flowers: April-June
Growth Duration: Annual
(Ribes lacustre)
Distribution: Occurring in forested and mountainous areas on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, Great Plains, and eastern North America.
Habitat: Moist forests and stream banks to forestd slopes and subalpine ridges.
Origin: Native
Flowers: April-July
Growth Duration: Perennial
(Ribes oxyacanthoides)
Distribution: East of the Cascades in Washington chiefly in the northeatern and southeastern portions of the state; Alaska to Oregon, east to the Atlantic Coast in the northern half of North America.
Habitat: Prairies and lower mountains.
Origin: Native
Flowers: May-June
Growth Duration: Perennial
(Ribes divaricatum)
Distribution: Occurring chiefly west of the Cascades crest in Washington and along the Columbia River Gorge; British Columbia south to California.
Habitat: Moist hillsides, prairies and open woods at low elevations.
Origin: Native
Flowers: April-May
Growth Duration: Perennial
(Ribes velutinum)
Distribution: Occurring in the southeastern corner of Washington; Washington south to California, east to Montana, Idaho, Nevada, Utah, and Arizona.
Habitat: Open areas in sagebrush-steppe and Ponderosa pine forests.
Origin: Native
Flowers: March-May
Growth Duration: Perennial
(Ribes velutinum)
Distribution: Occurring in the southeastern corner of Washington; Washington south to California, east to Montana, Idaho, Nevada, Utah, and Arizona.
Habitat: Open areas in sagebrush-steppe and Ponderosa pine forests.
Origin: Native
Flowers: March-May
Growth Duration: Perennial
(Ribes lobbii)
Distribution: Occurring chiefly east of the Cascades crest in Washington, but occasionally found to the coast; British Columbia south to California.
Habitat: Lowland valleys to open forests at moderate elevations in the mountains.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
(Ribes lobbii)
Distribution: Occurring chiefly east of the Cascades crest in Washington, but occasionally found to the coast; British Columbia south to California.
Habitat: Lowland valleys to open forests at moderate elevations in the mountains.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
(Ribes watsonianum)
Distribution: Chiefly east of the Cascades crest in Washington; British Columbia south to Oregon, east to Alberta.
Habitat: Forest openings in canyons and on ridges, mid-elevations in the mountains.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Ribes montigenum)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Subalpine to alpine ridges, talus slopes and rock crevices.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Ribes lobbii)
Distribution: Occurring chiefly east of the Cascades crest in Washington, but occasionally found to the coast; British Columbia south to California.
Habitat: Lowland valleys to open forests at moderate elevations in the mountains.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
(Ribes niveum)
Distribution: Occurring in the southeastern corner of Washington; Washington south to Oregon and Nevada, east to Idaho and Colorado.
Habitat: Usually in thickets along streams, but somedtimes on open hllsides.
Origin: Native
Flowers: April-May
Growth Duration: Perennial
(Ribes niveum)
Distribution: Occurring in the southeastern corner of Washington; Washington south to Oregon and Nevada, east to Idaho and Colorado.
Habitat: Usually in thickets along streams, but somedtimes on open hllsides.
Origin: Native
Flowers: April-May
Growth Duration: Perennial
(Ribes watsonianum)
Distribution: Chiefly east of the Cascades crest in Washington; British Columbia south to Oregon, east to Alberta.
Habitat: Forest openings in canyons and on ridges, mid-elevations in the mountains.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Ribes divaricatum)
Distribution: Occurring chiefly west of the Cascades crest in Washington and along the Columbia River Gorge; British Columbia south to California.
Habitat: Moist hillsides, prairies and open woods at low elevations.
Origin: Native
Flowers: April-May
Growth Duration: Perennial
(Ribes lacustre)
Distribution: Occurring in forested and mountainous areas on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, Great Plains, and eastern North America.
Habitat: Moist forests and stream banks to forestd slopes and subalpine ridges.
Origin: Native
Flowers: April-July
Growth Duration: Perennial
(Ribes watsonianum)
Distribution: Chiefly east of the Cascades crest in Washington; British Columbia south to Oregon, east to Alberta.
Habitat: Forest openings in canyons and on ridges, mid-elevations in the mountains.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Ribes montigenum)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Subalpine to alpine ridges, talus slopes and rock crevices.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Ribes inerme)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Moist forest edges and openings in the mountains, riparian corridors at lower elevations.
Origin: Native
Flowers: May-June
Growth Duration: Perennial
(Chenopodium berlandieri)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Roadsides, fields, riparian zones, wastelots, and other open areas at low to middle elevations.
Origin: Native
Flowers: August-October
Growth Duration: Annual
(Dysphania pumilio)
Distribution: Occurring along the southern border of Washington; southern British Columbia to California and northern Nevada, east to Idaho; scattered in eastern half of U.S.
Habitat: Sandy or gravelly soils, streambanks, waste areas, and other disturbed sites.
Origin: Introduced from Australia
Flowers: July-September
Growth Duration: Annual
(Chenopodium pratericola)
Origin: Native
Growth Duration: Annual
(Chenopodium fremontii)
Origin: Native
Flowers: June - September
Growth Duration: Annual
(Chenopodiastrum simplex)
Distribution: Introduced in much of North America; British Columbia to California in the West.
Habitat: Weed of roadsides and waste areas.
Origin: Native
Flowers: June - September
Growth Duration: Annual
(Oxybasis glauca)
Distribution: Occurring along the southern border east of the Cascades crest in Washington; Alaska south to California, east across the northern half of North America to the Atlantic Coast.
Habitat: Open, sometimes disturbed, areas, often where soil is alkaline or saline.
Origin: Native
Flowers: June-August
Growth Duration: Annual
(Chenopodium ×schulzeanum)
Origin: Native
(Dysphania botrys)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east across much of the U.S. and parts of southern Canada.
Habitat: Streambanks, gravel bars, roadsides, and other distrubed, open areas.
Origin: Introduced from Eurasia
Flowers: May-October
Growth Duration: Annual
(Oxybasis macrosperma)
Origin: Introduced
(Blitum virgatum)
Origin: Introduced
Flowers: June - September
Growth Duration: Annual
(Oxybasis chenopodioides)
Origin: Native
Flowers: June - August
Growth Duration: Annual
(Chenopodiastrum simplex)
Distribution: Introduced in much of North America; British Columbia to California in the West.
Habitat: Weed of roadsides and waste areas.
Origin: Native
Flowers: June - September
Growth Duration: Annual
(Chenopodium leptophyllum)
Distribution: East side of the Cascades, British Columbia to Baja California, east to the Mississippi Valley.
Habitat: Deserts and dry grasslands.
Origin: Native
Flowers: May - August
Growth Duration: Annual
(Chenopodium pratericola)
Origin: Native
Growth Duration: Annual
(Chenopodiastrum murale)
Distribution: Introduced throughout most of North America.
Habitat: Roadsides and waste areas.
Origin: Introduced
Flowers: May - August
Growth Duration: Annual
(Oxybasis glauca)
Distribution: Occurring along the southern border east of the Cascades crest in Washington; Alaska south to California, east across the northern half of North America to the Atlantic Coast.
Habitat: Open, sometimes disturbed, areas, often where soil is alkaline or saline.
Origin: Native
Flowers: June-August
Growth Duration: Annual
(Blitum hastatum)
Origin: Introduced?
(Chenopodium atrovirens)
Origin: Native
Flowers: June - September
Growth Duration: Annual
(Oxybasis chenopodioides)
Origin: Native
Flowers: June - August
Growth Duration: Annual
(Oxybasis rubra)
Distribution: Widely distributed, British Columbia to Newfoundland, south across the United States.
Habitat: Moist, saline soils.
Origin: Both native and introduced
Flowers: July - October
Growth Duration: Annual
(Chenopodium subglabrum)
Origin: Native
Flowers: May - August
Growth Duration: Annual
(Chenopodiastrum murale)
Distribution: Introduced throughout most of North America.
Habitat: Roadsides and waste areas.
Origin: Introduced
Flowers: May - August
Growth Duration: Annual
(Chenopodium strictum)
Origin: Introduced from Eurasia
(Eleusine indica)
Distribution: Uncommon weed in western Oregon; more common in California and eastern United States.
Habitat: Waste ground and roadsides.
Origin: Introduced from Africa
Flowers: July - August
Growth Duration: Annual
(Ulex europaeus)
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California; also in the eastern U.S.
Habitat: Roadsides, dry hillsides, fields, and other disturbed areas at low elevation.
Origin: Introduced from Europe
Flowers: April-September
Growth Duration: Perennial
(Aegopodium podagraria)
Distribution: Occurring in scattered locations west of the Cascades crest in the Puget Trough in Washington; southern British Columbia to Oregon, also in eastern North America.
Habitat: Disturbed forest understory and edge, where often dumped as garden waste.
Origin: Introduced from Eurasia
Flowers: May-July
Growth Duration: Perennial
(Vitis vinifera)
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; southwestern British Columbia to the Willamette Valley in western Oregon, also in Columbia River Gorge and Hells Canyon.
Habitat: Forest edge, fields, and other disturbed areas where escaping from cultivation.
Origin: Introduced from Europe
Flowers: June-July
Growth Duration: Perennial
(Vitis riparia)
Origin: Introduced from eastern United States
Flowers: May - July
Growth Duration: Perennial
(Muscari botryoides)
Origin: Introduced
(Muscari armeniacum)
Origin: Introduced from Eurasia
Growth Duration: Perennial
(Vitis labrusca)
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; southern British Columbia to California, east to Idaho and in Utah; also in eastern North America where more widespread.
Habitat: Disturbed areas, including forest understory, forest edges, wet areas, and roadsides.
Origin: Introduced
Flowers: May-June
Growth Duration: Perennial
(Botrypus virginianus)
Distribution: Occurring chiefly west of the Cascades crest and in the northeastern counties in Washington; Alaska to California, east across most of North America to the Atlantic Coast; also in Eurasia.
Habitat: Moist woods and thickets, seldom in meadows, from valleys to middle elevations in the mountains.
Origin: Native
Growth Duration: Perennial
(Botrychium lanceolatum)
Distribution: Circumboreal, extending south to southern Washington and Pennsylvania
Habitat: Moist or wet places in the mountains, occasionally to high elevations
Origin: Native
Growth Duration: Perennial
(Sceptridium multifidum)
Distribution: Occurring chiefly west of the Cascades crest and in the northeastern counties in Washington; Alaska to California, east to the Rocky Mountains, northern Great Plains, Great Lakes region, and northeastern North America.
Habitat: Open or shaded places, including meadows, wetland margins, and forest edge, from low elevations to the subalpine.
Origin: Native
Growth Duration: Perennial
(Botrypus virginianus)
Distribution: Occurring chiefly west of the Cascades crest and in the northeastern counties in Washington; Alaska to California, east across most of North America to the Atlantic Coast; also in Eurasia.
Habitat: Moist woods and thickets, seldom in meadows, from valleys to middle elevations in the mountains.
Origin: Native
Growth Duration: Perennial
(Poa paucispicula)
Origin: Native
Flowers: Late June - August
Growth Duration: Perennial
(Distichlis spicata)
Distribution: Vancouver Island, British Columbia, south to California; also along the east coast of the United States from Canada to Florida and Texas.
Habitat: Coastal beaches and salt marshes.
Origin: Native
Flowers: June - September
Growth Duration: Perennial
(Beckmannia syzigachne)
Distribution: Alaska to California, east from the coast to Manitoba and the Great Lakes region
Habitat: Pond margins, marshes and ditches at low elevations
Origin: Native
Flowers: June - July
Growth Duration: Annual
(Poa annua)
Distribution: Common weed throughout the Pacific Northwest.
Habitat: Lawns, gardens, roadsides, and waste ground to open woods.
Origin: Introduced
Flowers: March - August
Growth Duration: Annual, Biennial
(Eremopyrum triticeum)
Distribution: Occurring in scattered locations east of the Cascades crest in Washington; British Columbia south to Arizona, east to the Rocky Mountains and Great Plains.
Habitat: Dry wasteland, disturbed areas.
Origin: Introduced
Flowers: May-July
Growth Duration: Annual
(Deschampsia danthonioides)
Origin: Native
Flowers: Late May - July
Growth Duration: Annual
(Polypogon monspeliensis)
Distribution: Occurring on both sides of the Cascades crest in Washington; widely distributed throughout much of North America.
Habitat: Wet to dry waste areas, including vernal pools where the water is brackish.
Origin: Introduced
Flowers: May-August
Growth Duration: Annual
(Vahlodea atropurpurea)
Distribution: Alaska south to the high mountains of California, east to Newfoundland and New Hamshire.
Habitat: Mountain meadows, streambanks, and lake margins to alpine ridges.
Origin: Native
Flowers: July - August
Growth Duration: Perennial
(Echinochloa colona)
Origin: Introduced from the tropics
Growth Duration: Annual
(Echinochloa crus-galli)
Distribution: Found throughout southern Canada and most of the United States.
Habitat: Cultivted fields and wasteland, usually where moist, especially along irrigation ditches.
Origin: Introduced from Eurasia
Flowers: June - October
Growth Duration: Annual
(Melica aristata)
Origin: Native
Flowers: June - July
Growth Duration: Perennial
(Leymus triticoides)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and Texas.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Polypogon viridis)
Origin: Introduced
Flowers: June - September
Growth Duration: Perennial
(Cynodon dactylon)
Distribution: Common in the warmer portion of the United States, California to Florida; occasional in the Pacific Northwet.
Habitat: A weed of lawns, partures and railroad tracks.
Origin: Introduced
Flowers: June - September
Growth Duration: Perennial
(Redfieldia flexuosa)
Origin: Introduced from central United States
(Poa bolanderi)
Origin: Native
Flowers: July - August
Growth Duration: Annual
(Cynosurus echinatus)
Distribution: Introduced in southwest British Columba and Oregon's Wilamette Valley, south into California; more common in central and eastern United States.
Habitat: Weed of waste places.
Origin: Introduced
Flowers: May - July
Growth Duration: Annual
(Hierochloe occidentalis)
Origin: Native
(Bromus tectorum)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to Baja California, Mexico, east across North America to the Atlantic Coast.
Habitat: Sagebrush desert, grasslands, prairies, meadows, balds, roadsides, wastelots, and other distrubed open areas from low to middle elevations.
Origin: Introduced from Europe
Flowers: March-June
Growth Duration: Annual
(Polypogon australis)
Origin: Introduced
Growth Duration: Perennial
(Distichlis spicata)
Distribution: Vancouver Island, British Columbia, south to California; also along the east coast of the United States from Canada to Florida and Texas.
Habitat: Coastal beaches and salt marshes.
Origin: Native
Flowers: June - September
Growth Duration: Perennial
(Poa confinis)
Distribution: VAncouver Island, British Columbia, south along the coast to San Francisco, California.
Habitat: Coastal sand dunes.
Origin: Native
Flowers: May - June
Growth Duration: Perennial
(Phalaris canariensis)
Origin: Introduced
Flowers: June - August
Growth Duration: Annual
(Sclerochloa dura)
Distribution: Sparingly introduced in much of western United States; established in eastern Washington and Oregon.
Habitat: Weed of waste areas.
Origin: Introduced
Flowers: June
Growth Duration: Annual
(Holcus lanatus)
Distribution: Occurring chiefly west of the Cascades crest and east in the Columbia River Gorge in Washington; Alaska to California, east across much of North America to the Atlantic Coast.
Habitat: Balds, prairies, roadsides, meadows, lawns, wastelots, and other disturbed open areas.
Origin: Introduced from Europe
Flowers: May-July
Growth Duration: Perennial
(Polypogon interruptus)
Origin: Introduced
Flowers: June - August
Growth Duration: Perennial
(Puccinellia pumila)
Origin: Native
Flowers: June - August
Growth Duration: Perennial
(Aira praecox)
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia south to California; Nova Scotia south to Virginia in eastern North America.
Habitat: Gravelly prairies, sea bluffs and dunes near the coast, also in other disturbed, open areas at low elevations.
Origin: Introduced
Flowers: April-September
Growth Duration: Annual
(Thinopyrum ponticum)
Distribution: Occurring in scattered locations in the southern portion of Washington; British Columbia south to California, east to the central portion of North America.
Habitat: Disturbed areas including roadsides, wastelots, and agricultural fields.
Origin: Introduced
Flowers: May-June
Growth Duration: Perennial
(Puccinellia distans)
Distribution: Occurring east of the Cascades in Washington; North-central British Columbia south, chiefly east of the Cascades, to California, east through most of Canada and to the east base of the Rockies.
Habitat: Moist soil, especially where alkaline.
Origin: Introduced
Flowers: June-August
Growth Duration: Perennial
(Scleropoa rigida)
Origin: Introduced
Flowers: June - July
Growth Duration: Annual
(Epilobium hirsutum)
Distribution: Introduced occasionally west of the Cascades and near Bingen in Washington; British Columbia south to Oregon; upper central and northeastern North America.
Habitat: Garden escape in wet areas.
Origin: Introduced
Flowers: June-August
Growth Duration: Perennial
(Poa compressa)
Distribution: Alaska east to Newfoundland, south to most of the United States; common in the Pacific Northwest.
Habitat: Waste ground, roadsides, and gardens to open woods and meadows, usually where moist.
Origin: Introduced
Flowers: June - August
Growth Duration: Perennial
(Poa palustris)
Distribution: Introduced and widely distributed through Alaska and Canada, south to northern California and Virginia.
Habitat: Sea level to open meadows and forested areas in the mountains, always where moist.
Origin: Introduced
Flowers: May - August
Growth Duration: Perennial
(Glyceria striata)
Distribution: Alaska south to northern California, east to Newfoundland and Florida.
Habitat: Wet places, bogs, and mountain meadows.
Origin: Native
Flowers: May - July
Growth Duration: Perennial
(Corynephorus canescens)
Origin: Introduced
Growth Duration: Annual
(Leymus cinereus)
Distribution: East of the Cascades in Washington; central and western North America.
Habitat: Sagebrush-steppe, arid grasslands, forest edges, and other dry, open areas in the intermountain west.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
(Melica harfordii)
Origin: Native
Flowers: Late May - July
Growth Duration: Perennial
(Achnatherum hendersonii)
Distribution: Yakima and Kittitas counties in Washington; south to Jefferson County, Oregon.
Habitat: Dry, rocky, shallow soil, in sagebrush or ponderosa pine.
Origin: Native
Flowers: May-June
Growth Duration: Perennial
(Poa nervosa)
Origin: Native
Flowers: April - August
Growth Duration: Perennial
(Achnatherum hymenoides)
Distribution: East of the Cascades in Washington; British Columbia south to California, east to Alberta and the Dakotas and Texas.
Habitat: Grasslands, desert plains, and foothills, especially on rocky or sandy soil.
Origin: Native
Flowers: May-June
Growth Duration: Perennial
(Sorghum halepense)
Distribution: Introduced and established in much of the United States; rarely persistent in the Pacific Northwest.
Habitat: Waste ground, especially where moist.
Origin: Introduced from Mediterranean
Flowers: July - October
Growth Duration: Perennial
(Aegilops cylindrica)
Distribution: A weedy plant from Europe, introduced in much of western United States.
Habitat: Waste ground and roadsides; a troublesome weed in wheat.
Origin: Introduced from southern Europe
Flowers: June - July
Growth Duration: Annual
(Koeleria macrantha)
Distribution: Widely distributed on both sides of the Cascades crest in Washington; British Columbia to northern Mexico, east across North America to the Atlantic Coast except in the southeastern U.S.
Habitat: Sagebrush deserts, prairies, and open forests to subalpine ridges, mostly on sandy to rocky soil.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Poa leibergii)
Origin: Native
Flowers: Late March - May
Growth Duration: Perennial
(Puccinellia lemmonii)
Origin: Native
Flowers: June - July
Growth Duration: Perennial
(Poa lettermanii)
Origin: Native
Flowers: August
Growth Duration: Perennial
(Poa curtifolia)
Origin: Native
Flowers: June - August
Growth Duration: Perennial
(Briza minor)
Distribution: Well established in Eastern North America; occasional on the West coast.
Habitat: Dry waste areas.
Origin: Introduced from the Mediterranean region
Flowers: May - June
Growth Duration: Annual
(Poa laxiflora)
Distribution: Southern Alaska south to the Olympic Peninsula of Washington and Multnomah, Clackamus and Benton Counties, Oregon.
Habitat: Moist woods to rocky, open slopes, from near sea level to lower elevations in the mountains.
Origin: Native
Flowers: June
Growth Duration: Perennial
(Leymus racemosus)
Distribution: Occurring east of the Cascades crest in Washington; central Washington to north-central Oregon, east to Wyoming.
Habitat: Sandy areas in sagebrush flats and plains.
Origin: Introduced from Eurasia
Flowers: July-August
Growth Duration: Perennial
(Poa leptocoma)
Origin: Native
Flowers: Late June - August
Growth Duration: Perennial
(Schedonorus pratensis)
Distribution: Occurring in scattered localities on both sides of the Cascades crest in Washington; widely distributed throughout North America.
Habitat: Meadows, pastures, roadsides, and other disturbed areas, often where moist
Origin: Introduced
Flowers: May-July
Growth Duration: Perennial
(Phalaris paradoxa)
Origin: Introduced
Flowers: June - August
Growth Duration: Annual
(Polypogon maritimus)
Distribution: Known from Klickitat County in WA; Washington to California, east to Nevada; also in southeastern North America.
Habitat: Shoreline of ponds, lakes and rivers.
Origin: Introduced
Flowers: June-August
Growth Duration: Annual
(Coleanthus subtilis)
Origin: Native?
Flowers: July - October
Growth Duration: Annual
(Pleuropogon refractus)
Distribution: Southern British Columbia south in both the Southern British Columbia south in both the Olympics and Cascades of Washington, and the Cascades and coastal mountain of Oregon, to Mendocino County, California.
Habitat: Bogs, stream banks, swampy meadows,and moist, shaded woods, from near sea level toabout 5000 feet elevation in the mountains.
Origin: Native
Flowers: May - August
Growth Duration: Perennial
(Puccinellia nutkaensis)
Origin: Native
Growth Duration: Perennial
(Glyceria ×occidentalis)
Origin: Native
Flowers: May - June
Growth Duration: Perennial
(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
(Melica bulbosa)
Origin: Native
Flowers: May - July
Growth Duration: Perennial
(Echinochloa crus-galli)
Distribution: Found throughout southern Canada and most of the United States.
Habitat: Cultivted fields and wasteland, usually where moist, especially along irrigation ditches.
Origin: Introduced from Eurasia
Flowers: June - October
Growth Duration: Annual
(Dactylis glomerata)
Distribution: Distributed widely throughout Washington; distributed widely throughout North America.
Habitat: Disturbed areas such as meadows, fields, roadsides, and forest edges; common forage plant; also planted in logged areas in the mountains.
Origin: Introduced
Flowers: June-August
Growth Duration: Perennial
(Cortaderia selloana)
Distribution: Occurring in several counties west of the Cascades crest; Washington to California, in scattered states eastward to Atlantic Coast.
Habitat: Disturbed, open soil of wastelots, abandoned fields, and roadsides at low elevations, often near coast.
Origin: Introduced from central South America
Flowers: May-July
Growth Duration: Perennial
(Molinia caerulea)
Distribution: Known from a single locality in King County where it is persistent; occurring in scattered locations throughout North America.
Habitat: Disturbed areas at low elevation near the coast.
Origin: Introduced
Flowers: May-June
Growth Duration: Perennial
(Vulpia myuros)
Distribution: Occurring on both sides of the Cascades crest in Washington; widely distributed throughout most of North America except for the Great Plains and eastern Canada.
Habitat: Balds, open slopes, grasslands, roadsides, wastelots, and other disturbed open areas
Origin: Introduced from Europe
Flowers: April-June
Growth Duration: Annual
(Phalaris arundinacea)
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east across North America, except for extreme southern U.S., to the Atlantic Coast.
Habitat: Stream banks, meadows, fields, roadsides, irrigation ditches, and other disturbed open places from low elevations to nearly the subalpine.
Origin: Introduced from Europe
Flowers: June-July
Growth Duration: Perennial
(Leersia oryzoides)
Distribution: Occurring on both sides of the Cascades in Washington; British Columbia east to the Atlantic Coast, south throughout the U.S.
Habitat: Wet places, often in fairly deep water.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Achnatherum richardsonii)
Origin: Native
Flowers: June - July
Growth Duration: Perennial
(Bromus diandrus)
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains, southern Great Plains, and in eastern North America.
Habitat: Grassy balds, prairies, roadsides, wastelots, and other disturbed open areas at low to moderate elevations.
Origin: Introduced from Europe
Flowers: April-June
Growth Duration: Annual
(Poa trivialis)
Origin: Introduced
Flowers: May - July
Growth Duration: Perennial
(Leymus flavescens)
Origin: Native
Flowers: June - July
Growth Duration: Perennial
(Poa macrantha)
Distribution: Southern Vancouver Island and the islands of Puget Sound, south along the coast to Mendocino County, California.
Habitat: Chiefly on sand dunes.
Origin: Native
Flowers: April - July
Growth Duration: Perennial
(Scribneria bolanderi)
Origin: Native
Flowers: April - May
Growth Duration: Annual
(Puccinellia nutkaensis)
Origin: Native
Growth Duration: Perennial
(Melica spectabilis)
Distribution: Southern British Columbia south to northern California chiefly east of the Caascade crest, east to Montana and Colorado.
Habitat: Usually in moist, loamy soil in meadows and open parks in mountain forests, but also dry to wet meadowlands and open forests to subalpine ridges.
Origin: Native
Flowers: Late May - July
Growth Duration: Perennial
(Eragrostis lutescens)
Origin: Native
Flowers: July - October
Growth Duration: Annual
(Deschampsia elongata)
Distribution: Occurring on both sides of the Cascades in Washington; Alaska south to California, east to Alberta, Montana and New Mexico.
Habitat: Moist sandy or gravelly banks and slopes, and borders of streams and lakes.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
(Glyceria leptostachya)
Origin: Native
Flowers: June - August
Growth Duration: Perennial
(Glyceria borealis)
Distribution: Alaska east to Newfoundland, south to California and New Mexico.
Habitat: Swamps, wet meadows, and stream margins, often growing in 1-3 feet of water.
Origin: Native
Flowers: May - October
Growth Duration: Perennial
(Melica fugax)
Origin: Native
Flowers: May - Early July
Growth Duration: Perennial
(Melica smithii)
Distribution: Slouthern British Columbia south to Oregon, east to Alberta and Wyoming.
Habitat: Moist woods.
Origin: Native
Flowers: June - August
Growth Duration: Perennial
(Sisyrinchium sarmentosum)
Distribution: Occurring east of the Cascades crest in south-central Washington; south-central Washington to north-central Oregon.
Habitat: Moist, grassy areas.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Schedonorus arundinaceus)
Distribution: Occurring on both sides of the Cascades crest in Washington; widely distributed throughout North America.
Habitat: Meadowlands, fallow fields an ditch banks.
Origin: Introduced
Flowers: May-July
Growth Duration: Perennial
(Eragrostis hypnoides)
Distribution: In Washington, chiefly west of the Cascades, and along the Columbia and Snake Rivers; widespread in central and eastern United States.
Habitat: Mud flats along streams, ponds and lakes.
Origin: Native
Flowers: June - September
Growth Duration: Annual
(Achnatherum thurberianum)
Origin: Native
Flowers: Late May - June
Growth Duration: Perennial
(Poa suksdorfii)
Origin: Native
Flowers: July - August
Growth Duration: Perennial
(Pascopyrum smithii)
Origin: Native
Flowers: June - August
Growth Duration: Perennial
(Poa wheeleri)
Origin: Native
Flowers: April - August
Growth Duration: Perennial
(Poa marcida)
Origin: Native
Flowers: June - July
Growth Duration: Perennial
(Poa interior)
Origin: Native
(Parnassia cirrata)
Origin: Native
(Parnassia fimbriata)
Distribution: Occurring on both sides of the Cascades in Washington; Alaska to California, east to Alberta, Montana and New Mexico.
Habitat: Bogs, stream banks and wet meadows, mid- to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Parnassia palustris)
Distribution: Primarily west of the Cascades in Washington on the Olympic Peninsula and southwestern counties; Arctic America south to Minnesota and British Columbia, in the Rocky Mountains to Colorado and in parts of the Sierra Nevada in California.
Habitat: Arctic tundra to moist, shaded areas in the mountains, where usually along streams or around springs.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
(Parnassia kotzebuei)
Distribution: Known only from Okanogan and Chelan counties in Washington; Arctic Alaska south to Chelan County, WA, east across northern Canada to Labrador, east in the U.S. to the Rocky Mountains.
Habitat: Moist subalpine meadows, cliff faces, and ledges, often in boggy soil.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
(Parnassia palustris)
Distribution: Primarily west of the Cascades in Washington on the Olympic Peninsula and southwestern counties; Arctic America south to Minnesota and British Columbia, in the Rocky Mountains to Colorado and in parts of the Sierra Nevada in California.
Habitat: Arctic tundra to moist, shaded areas in the mountains, where usually along streams or around springs.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
(Parnassia parviflora)
Origin: Native
Growth Duration: Perennial
(Olsynium douglasii)
Distribution: Occurring on both sides of the Cascades crest in Washington, but more widespread east of the crest; British Columbia to California, east to Idaho, Nevada, and Utah.
Habitat: Coastal bluffs, prairies, open rocky areas, oak and ponderosa pine woodlands, sagebrush and juniper desert, where moist in early spring.
Origin: Native
Flowers: March-June
Growth Duration: Perennial
(Olsynium douglasii)
Distribution: Occurring on both sides of the Cascades crest in Washington, but more widespread east of the crest; British Columbia to California, east to Idaho, Nevada, and Utah.
Habitat: Coastal bluffs, prairies, open rocky areas, oak and ponderosa pine woodlands, sagebrush and juniper desert, where moist in early spring.
Origin: Native
Flowers: March-June
Growth Duration: Perennial
(Lilaeopsis occidentalis)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California.
Habitat: Marshes, river banks, salt flats, muddy or sandy beaches and shores along and near the coast.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
(Ceanothus velutinus)
Distribution: Widely distributed on both sides of the Cascades crest in Washington; British Columbia to California, east to Alberta, South Dakota, Wyoming, and Colorado.
Habitat: Moist to dry open forests, low to mid-elevations in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
(Sarcobatus vermiculatus)
Distribution: East of the Cascade in Washington; Washington south to California, east to the Dakotas, south to Colorado.
Habitat: Saline or alkaline, usually heavy soils of the drier regions.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Glossopetalon spinescens)
Origin: Native
Growth Duration: Perennial
(Glossopetalon spinescens)
Origin: Native
Growth Duration: Perennial
(Frasera fastigiata)
Distribution: In the Blue Mountains of Washington; Oregon, east to northeast Idaho.
Habitat: Moist woods and meadowlands.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Genista tinctoria)
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; Washington, Idaho, and in eastern North America.
Habitat: Roadsides, wastelots, and other disturbed open areas.
Origin: Introduced
Flowers: May-June
Growth Duration: Perennial
(Buglossoides arvensis)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east across much of North America to the Atlantic Coast.
Habitat: Roadsides, fields, and other dry, open, often disturbed sites in sagebrush desert to ponderosa pine forest openings.
Origin: Introduced from Europe
Flowers: April-June
Growth Duration: Annual
(Buglossoides arvensis)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east across much of North America to the Atlantic Coast.
Habitat: Roadsides, fields, and other dry, open, often disturbed sites in sagebrush desert to ponderosa pine forest openings.
Origin: Introduced from Europe
Flowers: April-June
Growth Duration: Annual
(Lithospermum ruderale)
Distribution: Occurring east of the Cascades crest in Washington; southern British Columbia to California, east to the Sasketchewan and the Rocky Mountains.
Habitat: Sagebrush desert to ponderosa pine forest openings, from low to middle elevations in the mountains.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
(Agrimonia gryposepala)
Distribution: Reported from Washington but currently no specimens exist; British Columbia to California, east to the Rocky Mountains.
Habitat: Edges, openings, draws, thickets, and open forest.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Glechoma hederacea)
Distribution: Occurring in locations throughout Washington; introduced thoughout nearly all of North America.
Habitat: Moist woods and thickets, disturbed areas.
Origin: Introduced from Eurasia
Flowers: April-June
Growth Duration: Perennial
(Diphasiastrum complanatum)
Distribution: Occurring on both sides of the Cascades crest in Washington, primarily in the northern half of the state; Alaska to Oregon, Idaho and Montana, east across Canada and the northern U.S. to the Atlantic Coast.
Habitat: Moist to dry, usually coniferous forests, rocky slopes and sandy openings, low to mid-elevations.
Origin: Native
Spores: Sporing structures in summer and fall
Growth Duration: Perennial
(Physalis longifolia)
Distribution: Occurring chiefly east of the Cascades in Washington; occurring throughout much of North America.
Habitat: Weed of cultivated fields and waste places.
Origin: Introduced
Flowers: June-September
Growth Duration: Perennial
(Physalis longifolia)
Distribution: Occurring chiefly east of the Cascades in Washington; occurring throughout much of North America.
Habitat: Weed of cultivated fields and waste places.
Origin: Introduced
Flowers: June-September
Growth Duration: Perennial
(Diphasiastrum complanatum)
Distribution: Occurring on both sides of the Cascades crest in Washington, primarily in the northern half of the state; Alaska to Oregon, Idaho and Montana, east across Canada and the northern U.S. to the Atlantic Coast.
Habitat: Moist to dry, usually coniferous forests, rocky slopes and sandy openings, low to mid-elevations.
Origin: Native
Spores: Sporing structures in summer and fall
Growth Duration: Perennial
(Dendrolycopodium dendroideum)
Distribution: Occurring in the Cascades and in northeastern Washington; Alaska to Washington, east to the Rocky Mountains, and south in eastern North America to Alabama; circumboreal.
Habitat: Woodlands and open brushy areas. In Washington, found mostly among rock or talus with thick moss or duff layers, often under brush or on edges of forest. At mid elevations in the mountains.
Origin: Native
Growth Duration: Perennial
(Kopsiopsis hookeri)
Distribution: Occurring west of the Cascades crest along the Puget Sound and outer coast in Washington; British Columbia to California.
Habitat: Myco-heterotrophic on Gaultheria shallon, which occurs primarily in forest understories, along forest edges, and in forest and meadow openings at low to moderate elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Kopsiopsis hookeri)
Distribution: Occurring west of the Cascades crest along the Puget Sound and outer coast in Washington; British Columbia to California.
Habitat: Myco-heterotrophic on Gaultheria shallon, which occurs primarily in forest understories, along forest edges, and in forest and meadow openings at low to moderate elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Glechoma hederacea)
Distribution: Occurring in locations throughout Washington; introduced thoughout nearly all of North America.
Habitat: Moist woods and thickets, disturbed areas.
Origin: Introduced from Eurasia
Flowers: April-June
Growth Duration: Perennial
(Senecio triangularis)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains.
Habitat: Moist places and streambanks from the lowlands to the subalpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
(Packera paupercula)
Distribution: Occurring east of the Cascades crest in Washington British Columbia to Washington, east to the Rocky Mountains, northern Great Plains, and eastern North America.
Habitat: Meadows, moist cilffs and woods, from the foothills to middle elevations in the mountains.
Origin: Native
Flowers: May-October
Growth Duration: Perennial
(Senecio lugens)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to Washington, east to the northern Rocky Mountains.
Habitat: Wet meadows, grassy alpine slopes, and rich northern woods.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Packera bolanderi)
Distribution: Occurring west of the Cascades crest in southwestern Washington and in the Columbia River Gorge; southern Washington to California.
Habitat: Moist, rocky woodlands, banks, bluffs, and beaches, from the lowlands to middle elevations in the mountains.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
(Senecio serra)
Distribution: Occurring chiefly east of the Cascades crest in Washington; Washington to California, east to Montana, Wyoming, and Colorado.
Habitat: Meadows and open, moist hillsides, foothills to mid-elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Packera streptanthifolia)
Distribution: Occurring on both sides of the Cascades crest in Washington; Yukon Territory to California, east to the Rocky Mountains and Sasketchewan.
Habitat: Moist to moderately dry open areas and forest, from middle elevations to the subalpine.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
(Senecio vulgaris)
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: Roadsides, waste ground, lawns, and other disturbed, open sites.
Origin: Introduced from Europe
Flowers: February-May
Growth Duration: Annual
(Packera indecora)
Distribution: Occurring on both sides of the Cascades crest in northern Washington; Alaska to Washington, and also in California, east to Idaho, Montana, Wyoming, and in the Great Lakes Region, also east across Canada to the Atlantic Coast.
Habitat: Damp meadows to stream banks and moist woodlands, from the valleys to the subalpine.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
(Packera subnuda)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, and Wyoming.
Habitat: Wet meadows in the subalpine and alpine.
Origin: Native
Flowers: July-September.
Growth Duration: Perennial
(Packera flettii)
Distribution: Occurring in the Olympics and Cascades mountains in Washington; Washington to Oregon.
Habitat: Open, rocky places in the alpine, occasionally at middle elevatins, especially on talus slopes.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Packera macounii)
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California.
Habitat: Open woods and dry, open places at low elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Packera macounii)
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California.
Habitat: Open woods and dry, open places at low elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Packera porteri)
Distribution: Reported east of the Cascades crest in Okanogan County in Washington; Washington and Oregon, also occurring in Colorado.
Habitat: Talus slopes in the alpine.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
(Packera pauciflora)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to northern Washington, disjunct in California and northwest Wyoming, east to Northwest Territory and Alberta, also in eastern Canada.
Habitat: Alpine and subalpine meadows and moist cliffs.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Packera streptanthifolia)
Distribution: Occurring on both sides of the Cascades crest in Washington; Yukon Territory to California, east to the Rocky Mountains and Sasketchewan.
Habitat: Moist to moderately dry open areas and forest, from middle elevations to the subalpine.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
(Senecio hydrophiloides)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, Wyoming, and Utah.
Habitat: Wet meadows in the mountains and foothills, but not in alkali.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
(Senecio hydrophilus)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Swampy places in the valleys and foothills; tolerant of alkali.
Origin: Native
Flowers: June- September
Growth Duration: Biennial, Perennial
(Senecio integerrimus)
Distribution: Occurring chiefly east of the Cascades crest in Washington, where widely distributed; British Columbia to California, east to the Great Plains and Great Lakes region.
Habitat: Meadows and seasonally moist open areas from low elevations to the subalpine.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
(Senecio sylvaticus)
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California, also in eastern North America.
Habitat: Roadsides, fields, forest edge, wastelots, and other disturbed areas at low elevation.
Origin: Introduced from Europe
Flowers: May-September
Growth Duration: Annual
(Senecio sylvaticus)
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California, also in eastern North America.
Habitat: Roadsides, fields, forest edge, wastelots, and other disturbed areas at low elevation.
Origin: Introduced from Europe
Flowers: May-September
Growth Duration: Annual
(Packera cana)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the northern Great Plains.
Habitat: Dry, open, often rocky places, from the foothills to alpine meadows.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
(Gayophytum racemosum)
Distribution: Chiefly east of the Cascade in Washington; British Columbia south to California, east to Montana and Colorado.
Habitat: Open slopes, often where moist early, from the foothills to mid-elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Annual
(Gayophytum decipiens)
Distribution: Occurring east of the Cascades crest in central Washington; north-central Washington to California, east to Montana, Wyoming, and Colorado.
Habitat: Rocky ridges and slopes, meadows, and flats from sagebrush desert to ponderosa pine forest openings.
Origin: Native
Flowers: June-August
Growth Duration: Annual
(Gayophytum humile)
Distribution: Occurring east of the Cascades crest in Washington; widespread in western North America; also known from South America.
Habitat: Open areas at low to middle elevations where soil is seasonally wet.
Origin: Native
Flowers: June-August
Growth Duration: Annual
(Gayophytum ramosissimum)
Distribution: Occurring east of the Cascades crest in Washington; Washington south to California and Arizona, east to the Rocky Mountains.
Habitat: Dry foothills and valleys to the lower mountains.
Origin: Native
Flowers: June-July
Growth Duration: Annual
(Gayophytum racemosum)
Distribution: Chiefly east of the Cascade in Washington; British Columbia south to California, east to Montana and Colorado.
Habitat: Open slopes, often where moist early, from the foothills to mid-elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Annual
(Gayophytum diffusum)
Distribution: Both sides of the Cascades in Washington; British Columbia south to California, east to South Dakota and New Mexico.
Habitat: Dry meadows and open slopes, from lowlands to near timberline.
Origin: Native
Flowers: June-August
Growth Duration: Annual
(Gayophytum heterozygum)
Distribution: Occurring east of the Cascades crest in Washington; Washington south to California, east to Nevada.
Habitat: Forest openings at low to moderate elevations in the mountains.
Origin: Native
Flowers: June-July
Growth Duration: Annual
(Vaccinium scoparium)
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to Colorado.
Habitat: Open, dry forests, mid- to high elevations in the mountains.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
(Gruvelia pusilla)
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, introduced and disjunct in Chile.
Habitat: Dry, open places at lower elevations.
Origin: Native
Flowers: May-June
Growth Duration: Annual
(Peritoma serrulata)
Distribution: East of the Cascades in Washington; widely distributed throughout North America except Alaska and southeastern U.S.
Habitat: Sagebrush deserts and Ponderosa pine forest openings.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
(Lomatium leptocarpum)
Distribution: Occurring east of the Cascades crest in the southeastern counties in Washington; southeastern Washington to southern Oregon, east to western Idaho.
Habitat: Seasonally wet, usually shallow-soil meadows, and micro-depressions in vernally wet, rocky sites, often with clay component.
Origin: Native
Flowers: May-June
Growth Duration: Perennial
(Grindelia nana)
Distribution: Occurring on both sides of the Cascades crest in Washington; Washington to California, east to Montana.
Habitat: Dry, sandy hills, roadsides.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
(Grindelia squarrosa)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east across southern Canada and most of the United States to the Atlantic Coast.
Habitat: Dry, open, often sandy places, at low to middle elevations, often where disturbed.
Flowers: June-September
Growth Duration: Annual
(Grindelia nana)
Distribution: Occurring on both sides of the Cascades crest in Washington; Washington to California, east to Montana.
Habitat: Dry, sandy hills, roadsides.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
(Grindelia stricta)
Distribution: Occurring west of the Cascades crest in Washington; Alaska to California.
Origin: Native
Growth Duration: Perennial
(Grindelia integrifolia)
Distribution: Occurring west of the Cascades crest in Washington at low elevations; British Columbia to northern California.
Habitat: Salt marshes, rocky shores along the coast, coastal headlands and bluffs, and various non-maritime habitats in the Puget Trough.
Origin: Native
Flowers: April-January
Growth Duration: Perennial
(Grindelia integrifolia)
Distribution: Occurring west of the Cascades crest in Washington at low elevations; British Columbia to northern California.
Habitat: Salt marshes, rocky shores along the coast, coastal headlands and bluffs, and various non-maritime habitats in the Puget Trough.
Origin: Native
Flowers: April-January
Growth Duration: Perennial