Brown galingale (Cyperus fuscus)
Origin: Introduced

Shaggy galinsoga (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

Nevius's garlic (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

Small-flowered gaura (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

Glaucous gentian (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

Lapland gentian (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

Northern gentian (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

Prairie gentian (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

Samiland gentian (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

Staff gentian (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

Carolina geranium (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

Montane geranium (Geranium ibericum)
Origin: Introduced

Round-leaved geranium (Geranium rotundifolium)
Origin: Introduced

Sticky geranium (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

Western geranium (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

Western germander (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

Western giant-hyssop (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

Bluehead gilia (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

Globe gilia (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

Many-flowered gilia (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

Sinuate gilia (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

Lott's gily-flower (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

Sand gily-flower (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

Wild ginger (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

Glacier-lily (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

American glehnia (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

Gooseberry-leaved globemallow (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

Munro's globemallow (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

White-stemmed globemallow (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

Low glyceria (Glyceria declinata)
Origin: Introduced

Spear leaf goat-chicory (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

Hybrid goatsbeard (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

Sylvan goatsbeard (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

Western goblin (Botrychium montanum)
Distribution: British Columbia to California, east to Montana
Origin: Native
Growth Duration: Perennial

Gold-star (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

Mountain golden-banner (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

Northern golden-saxifrage (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

Oregon goldenaster (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

Fragrant goldenrod (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

Great Plains goldenrod (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

Missouri goldenrod (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

Rocky Mountain goldenrod (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

West Coast goldenrod (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

Western goldenrod (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

Bloomer's goldenweed (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

Columbian heath goldenweed (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

Greene's heath goldenweed (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

Hall's goldenweed (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

Lyall's goldenweed (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

Palouse goldenweed (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

Rabbitbrush goldenweed (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

Woolly goldenweed (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

Maritime goldfields (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

Smooth goldfields (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

Idaho goldthread (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

Threeleaf goldthread (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

Goose-grass (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

Canada gooseberry (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

Desert gooseberry (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

Gummy gooseberry (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

Mount Adams gooseberry (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

Oregon gooseberry (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

Snow gooseberry (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

Straggly gooseberry (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

Wastson gooseberry (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

Whitestem gooseberry (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

Clammy goosefoot (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

Fremont's goosefoot (Chenopodium fremontii)
Origin: Native
Flowers: June - September
Growth Duration: Annual

Glaucous goosefoot (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

Jerusalem oak goosefoot (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

Leafy goosefoot (Blitum virgatum)
Origin: Introduced
Flowers: June - September
Growth Duration: Annual

Maple leaf goosefoot (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

Narrowleaf goosefoot (Chenopodium pratericola)
Origin: Native
Growth Duration: Annual

Oakleaf goosefoot (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

Pinyon goosefoot (Chenopodium atrovirens)
Origin: Native
Flowers: June - September
Growth Duration: Annual

Red goosefoot (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

Wall goosefoot (Chenopodiastrum murale)
Distribution: Introduced throughout most of North America.
Habitat: Roadsides and waste areas.
Origin: Introduced
Flowers: May - August
Growth Duration: Annual

Goosegrass (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

Bishop's goutweed (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

River-bank grape (Vitis riparia)
Origin: Introduced from eastern United States
Flowers: May - July
Growth Duration: Perennial

Garden grape-hyacinth (Muscari armeniacum)
Origin: Introduced from Eurasia
Growth Duration: Perennial

Common grapefern (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

Leathery grapefern (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

Alaska blue grass (Poa paucispicula)
Origin: Native
Flowers: Late June - August
Growth Duration: Perennial

American slough grass (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

Annual false wheat grass (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

Annual rabbit's-foot grass (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

Awnless barnyard grass (Echinochloa colona)
Origin: Introduced from the tropics
Growth Duration: Annual

Bearded melic grass (Melica aristata)
Origin: Native
Flowers: June - July
Growth Duration: Perennial

Beardless rabbit's-foot grass (Polypogon viridis)
Origin: Introduced
Flowers: June - September
Growth Duration: Perennial

Blowout grass (Redfieldia flexuosa)
Origin: Introduced from central United States

Bristly dog's-tail grass (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

Cheat grass (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

Coastal salt grass (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

Common canary grass (Phalaris canariensis)
Origin: Introduced
Flowers: June - August
Growth Duration: Annual

Common velvet grass (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

Dwarf alkali grass (Puccinellia pumila)
Origin: Native
Flowers: June - August
Growth Duration: Perennial

Eurasian quack grass (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

Fern grass (Scleropoa rigida)
Origin: Introduced
Flowers: June - July
Growth Duration: Annual

Flat-stem blue grass (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

Fowl manna grass (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

Great Basin lyme grass (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

Henderson's rice grass (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

Indian rice grass (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

Jointed goat grass (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

Leiberg's blue grass (Poa leibergii)
Origin: Native
Flowers: Late March - May
Growth Duration: Perennial

Letterman's blue grass (Poa lettermanii)
Origin: Native
Flowers: August
Growth Duration: Perennial

Little quaking grass (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

Mammoth lyme grass (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

Meadow rye grass (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

Mediterranean rabbitsfoot grass (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

Nodding false semaphore grass (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

Northwestern manna grass (Glyceria ×occidentalis)
Origin: Native
Flowers: May - June
Growth Duration: Perennial

Onion grass (Melica bulbosa)
Origin: Native
Flowers: May - July
Growth Duration: Perennial

Orchard grass (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

Purple moor grass (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

Reed canary grass (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

Richardson's rice grass (Achnatherum richardsonii)
Origin: Native
Flowers: June - July
Growth Duration: Perennial

Rough-stalk blue grass (Poa trivialis)
Origin: Introduced
Flowers: May - July
Growth Duration: Perennial

Sand-dune blue grass (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

Shining alkali grass (Puccinellia nutkaensis)
Origin: Native
Growth Duration: Perennial

Six-weeks love grass (Eragrostis lutescens)
Origin: Native
Flowers: July - October
Growth Duration: Annual

Slender-spike manna grass (Glyceria leptostachya)
Origin: Native
Flowers: June - August
Growth Duration: Perennial

Small melic grass (Melica fugax)
Origin: Native
Flowers: May - Early July
Growth Duration: Perennial

Suksdorf's blue-eyed grass (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

Teal love grass (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

Western blue grass (Poa suksdorfii)
Origin: Native
Flowers: July - August
Growth Duration: Perennial

Wheeler's blue grass (Poa wheeleri)
Origin: Native
Flowers: April - August
Growth Duration: Perennial

Woods blue grass (Poa interior)
Origin: Native

Fringed Grass-of-Parnassus (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

Kotzebue's Grass-of-Parnassus (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

Small-flowered Grass-of-Parnassus (Parnassia parviflora)
Origin: Native
Growth Duration: Perennial

Purple-eyed grass-widow (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

Greasewood (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

Nevada greasewood (Glossopetalon spinescens)
Origin: Native
Growth Duration: Perennial

Umpqua green-gentian (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

Corn gromwell (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

Western gromwell (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

Gill over the ground (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

Ground-cherry (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

Trailing ground-pine (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

Small groundcone (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

Groundivy (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

Balsam groundsel (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

Bolander's groundsel (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

Cleftleaf groundsel (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

Elegant groundsel (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

Flett's groundsel (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

Macoun's groundsel (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

Rayless alpine groundsel (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

Stout meadow groundsel (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

Western groundsel (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

Woodland groundsel (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

Black-foot groundsmoke (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

Dwarf groundsmoke (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

Racemose groundsmoke (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

Zigzag groundsmoke (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

Little gruvelia (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

Gumbo lomatium (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

Curlycup gumweed (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

Oegon gumweed (Grindelia stricta)
Distribution: Occurring west of the Cascades crest in Washington; Alaska to California.
Origin: Native
Growth Duration: Perennial

Willamette Valley gumweed (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