Great flowered gaillardia (Gaillardia aristata)
Distribution: Chiefly east of the Cascades in Washington; British Columbia south to Oregon.
Habitat: Dry, open areas at low to mid-elevations.
Origin: Native
Flowers: May-September

Ciliate galinsoga (Galinsoga quadriradiata)
Distribution: Introduced and sparingly established in western Washington; occurring throughout most of North America except intermountain west from Idaho to Texas.
Habitat: Gardens and waste places.
Origin: Introduced from Central and South America
Flowers: June-October

Crow garlic (Allium vineale)
Distribution: Scattered localities throughout Washington.
Habitat: Disturbed areas.
Origin: Introduced from Europe
Flowers: June - August

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Shy 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

Small-flowered gilia (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

Rosy gily-flower (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

Shy gily-flower (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

Glacier-lily (Erythronium grandiflorum)
Distribution: Widely distributed throughout Washington; British Columbia south to Oregon, east to Colorado.
Habitat: Sagebrush slopes to near timberline in the mountains, often blooming near snow fields.
Origin: Native
Flowers: March-August

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

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

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

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

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

Hybrid goatsbeard (Tragopogon miscellus)
Origin: Native

Sylvan goatsbeard (Aruncus dioicus)
Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska south to California.
Habitat: Moist woods, low to mid-elevations in the mountains.
Origin: Native
Flowers: May-July

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

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

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

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

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.

Columbian heath goldenrod (Ericameria resinosa)
Distribution: Occurring east of the Cascades crest in Washington; Washington south 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

Grass leaved goldenrod (Euthamia graminifolia)
Origin: Native

Missouri goldenrod (Solidago missouriensis)
Distribution: Southern British Columbia and western Washington, east to Ontario and Tennesee.
Habitat: Rather dry, open places, from the valleys and plains to fairly high elevations in the mountains.
Origin: Native
Flowers: Late June - October

Rocky Mountain goldenrod (Solidago multiradiata)
Distribution: Alaska to California, east to Colorado
Habitat: Mountain meadows and open slopes at high elevations
Origin: Native
Flowers: July - August

West Coast goldenrod (Solidago elongata)
Origin: Native

Western goldenrod (Euthamia occidentalis)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia south to California, east to the Rocky Mountains and Great Plains of the U.S.
Habitat: Low, ususally moist ground in the valleys and plains.
Origin: Native
Flowers: July-October

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

Greene's goldenweed (Ericameria greenei)
Distribution: East of the Cascade crest in Washington; from northern Washington to California, and in the Wallowa Mountains of Oregon.
Habitat: Open or sparsely wooded slopes at rather high elevations in the mountains.
Origin: Native
Flowers: July-August

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

Lyall's goldenweed (Tonestus lyallii)
Distribution: Occurring in the Olympics and Cascades mountains in Washington; British Columbia south to California, east to Alberta, south to Colorado.
Habitat: Mountain meadows and rocky slopes, alpine and subalpine.
Origin: Native
Flowers: July-September

Palouse goldenweed (Pyrrocoma liatriformis)
Distribution: Occurring in the Palouse region of southeastern Washington.
Habitat: Grassy hillsides and prairies.
Origin: Native
Flowers: July-August

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

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

Maritime goldfields (Lasthenia maritima)
Distribution: Coastal southern British Columbia to California.
Habitat: Rocky beaches.
Origin: Native

Smooth goldfields (Lasthenia glaberrima)
Distribution: West of the Cascades, southwest Washington south to central California.
Habitat: Wet or muddy ground at low elevations, including venral pools.
Origin: Native
Flowers: May-July

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

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

Goose-grass (Galium aparine)
Distribution: Widely distributed throughout Washington; widely distributed throughout North America.
Habitat: Variety of habitats, sea level to mid-elevations in the mountains.
Origin: Native
Flowers: April-June

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Narrowleaf goosefoot (Chenopodium pratericola)
Origin: Native

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

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

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

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

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

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

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

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

Fox grape-vine (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

Lance-leaved grapefern (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

Virginia 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

Alkaline 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

Annual blue grass (Poa annua)
Distribution: Common weed throughout the Pacific Northwest.
Habitat: Lawns, gardens, roadsides, and waste ground to open woods.
Origin: Introduced
Flowers: March - August

Annual hair grass (Deschampsia danthonioides)
Origin: Native
Flowers: Late May - July

Arctic-hair grass (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

Barnyard grass (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

Beardless lyme grass (Leymus triticoides)
Origin: Native
Flowers: June - August

Bering hair grass (Deschampsia cespitosa)
Distribution: Widely distributed throughout Washington; widely distributed throughout North America.
Habitat: From coastal marshes and moist prairies to alpine ridges, talus slopes, mountain meadows, and moist areas in the mountains in general.
Origin: Native
Flowers: June-September

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

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

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

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

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

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

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

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

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

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

Gray club-awn grass (Corynephorus canescens)
Origin: Introduced

Harford's melic grass (Melica harfordii)
Origin: Native
Flowers: Late May - July

Hooker's blue grass (Poa nervosa)
Origin: Native
Flowers: April - August

Johnson grass (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

Koeler's prairie grass (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

Lemmon's alkali grass (Puccinellia lemmonii)
Origin: Native
Flowers: June - July

Little mountain blue grass (Poa curtifolia)
Origin: Native
Flowers: June - August

Loose-flower blue grass (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

Marsh blue grass (Poa leptocoma)
Origin: Native
Flowers: Late June - August

Mediterranean canary grass (Phalaris paradoxa)
Origin: Introduced
Flowers: June - August

Moss grass (Coleanthus subtilis)
Origin: Native?
Flowers: July - October

Nootka alkali grass (Puccinellia nutkaensis)
Origin: Native

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

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

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

Pale grass (Sisyrinchium sarmentosum)
Distribution: In the Cascade Mountains of Washington and Oregon near the Columbia River Gorge.
Habitat: Moist, grassy areas.
Origin: Native
Flowers: June-August

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

Rattail six-weeks grass (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

Rice cut grass (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

Ripgut grass (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

Sand lyme grass (Leymus flavescens)
Origin: Native
Flowers: June - July

Scribner's grass (Scribneria bolanderi)
Origin: Native
Flowers: April - May

Shore grass (Sisyrinchium littorale)
Distribution: Occurring west of the Cascades crest in coastal areas in Washington; Alaska to Oregon
Habitat: Coastal moist, sandy or grassy areas, interdunal depressions, edges of streams and lakes
Origin: Native
Flowers: May-July

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

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

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

Suksdorf's blue-eyed grass (Sisyrinchium sarmentosum)
Distribution: In the Cascade Mountains of Washington and Oregon near the Columbia River Gorge.
Habitat: Moist, grassy areas.
Origin: Native
Flowers: June-August

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

Tufted hair grass (Deschampsia cespitosa)
Distribution: Widely distributed throughout Washington; widely distributed throughout North America.
Habitat: From coastal marshes and moist prairies to alpine ridges, talus slopes, mountain meadows, and moist areas in the mountains in general.
Origin: Native
Flowers: June-September

Western-wheat grass (Pascopyrum smithii)
Origin: Native
Flowers: June - August

White-grain mountain-rice grass (Oryzopsis asperifolia)
Distribution: British Columbia east to Newfoundland, south to Maine and Montana and the northeast portion of Washington.
Habitat: Open coniferous woods.
Origin: Native
Flowers: May - July

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

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

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

Western grasswort (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

Greasewood (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

Spiny green-bush (Glossopetalon spinescens)
Origin: Native

Dyer's greenweed (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

Field 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

Tall hairy grooveburr (Agrimonia gryposepala)
Origin: Native

Ground cedar (Diphasiastrum complanatum)
Distribution: Occurring on both sides of the Cascades crest in Washington, primarily in the northern half of the state; Alaska south to Washington, 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

Long-leaved 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

Ground-pine (Diphasiastrum alpinum)
Distribution: Alaska to northern Washington, east to northern Idaho and northwest Montana.
Habitat: Rocky slopes, dry heath meadows, and open conifer forests at high elevations. In Washington, often found associated with Phyllodoce, Cassiope, and Vaccinium in dry heath soils.
Origin: Native

Tree ground-pine (Dendrolycopodium dendroideum)
Distribution: Widespread across boreal forests of North America, south to northern Washington, Idaho, Montana, Colorado, and NE U.S. Also found in Asia. In Washington, known from scattered locations in the west Cascades and in Pend Oreille county.
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

Vancouver 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

Arrowleaf groundsel (Senecio triangularis)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska south to California, east to the Rocky Mountains.
Habitat: Moist places and streambanks, moderate to high elevations in the mountains, and low elvations west of the Cascades.
Origin: Native
Flowers: June-September

Black-tipped groundsel (Senecio lugens)
Distribution: Alaska and Yukon, south to the Olympic Mountains and the northern mountains in Wyoming; reported in Okanogan County, but otherwise not known in the Cascades.
Habitat: Wet meadows, grassy alpine slopes and rich northern woods.
Origin: Native
Flowers: July - August

Butterweed groundsel (Senecio serra)
Distribution: Occurring chiefly east of the Cascades crest in Washington; Washington south to California, east to the Rocky Mountains north of Arizona and New Mexico.
Habitat: Meadows and open, moist hillsides, foothills to mid-elevations in the mountains.
Origin: Native
Flowers: June-August

Common groundsel (Senecio vulgaris)
Distribution: Occurring on both sides of the Cascades crest in Washington; widely distributed throughout most of North America.
Habitat: Roadsides, waste ground, lawns, and other disturbed, open sites.
Origin: Introduced from Europe
Flowers: February-May

Few-leaved groundsel (Packera subnuda)
Distribution: Occurring in the Cascade Mountains of Washington; Washington south to California, east to Montana and Wyoming.
Habitat: Alpine and subalpine wet meadows.
Origin: Native
Flowers: July-September.

Long rayed groundsel (Packera macounii)
Distribution: West of the Cascades, British Columbia to southern Oregon, mostly in the Puget Trough.
Habitat: Open woods and dry, open places.
Origin: Native
Flowers: May - July

Porter's groundsel (Packera porteri)
Origin: Native

Rayless mountain groundsel (Packera indecora)
Distribution: Alaska to Washington, east to Montana
Habitat: Uncommon in moist woods and on stream banks, moderate elevations in the mountains
Origin: Native
Flowers: July - August

Stout meadow groundsel (Senecio hydrophiloides)
Distribution: East of the Cascades, Okanogan County and adjacent British Columbia, south to eastern Oregon and east to western Montana.
Habitat: Wet meadows in the mountains and foothills, but not in alkali.
Origin: Native
Flowers: May - July

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-July

Woodland groundsel (Senecio sylvaticus)
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California, also in eastern North America.
Habitat: Disturbed ground at low elevations.
Origin: Introduced from Europe
Flowers: May-September

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

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

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

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

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

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

Oregon gumplant (Grindelia hirsutula)
Distribution: From the coast to mid elevations; both sides of the Cascades in Washington. British Columbia south to California, east to New York and Quebec.
Habitat: Coastal bluffs, forest openings, alluvial areas, disturbed sites.
Origin: Native
Flowers: May-October

Coastal gumweed (Grindelia hirsutula)
Distribution: From the coast to mid elevations; both sides of the Cascades in Washington. British Columbia south to California, east to New York and Quebec.
Habitat: Coastal bluffs, forest openings, alluvial areas, disturbed sites.
Origin: Native
Flowers: May-October

Curlycup gumweed (Grindelia squarrosa)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia south to California, east across southern Canada and most of the United States to the Atlantic Coast.
Habitat: Dry, open, often sandy places, at low elevations.
Origin: Introduced
Flowers: June-September

Idaho gumweed (Grindelia hirsutula)
Distribution: From the coast to mid elevations; both sides of the Cascades in Washington. British Columbia south to California, east to New York and Quebec.
Habitat: Coastal bluffs, forest openings, alluvial areas, disturbed sites.
Origin: Native
Flowers: May-October

Puget Sound 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: June-March

Gypsy flower (Cynoglossum officinale)
Distribution: Widely distributed east of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Roadsides, fields, meadows, forest edge, ditches, and other disturbed open areas; noxious weed.
Origin: Introduced from Eurasia
Flowers: May-July