Vascular Plants

Includes all flowering plants, conifers, ferns and fern-allies.


Browse by scientific name:

A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z
Scientific names beginning with G:
Gagea villosahairy star-of-bethleham
Origin: Introduced
Gaillardia aristatablanket flower, great flowered gaillardia
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
Galanthus nivalissnowdrop
Distribution: Garden escape in northeastern United States and adjacent Canada; occasional in western Washington.
Habitat: Abandoned gardens, roadsides, open forests.
Origin: Introduced from Europe
Flowers: February - March
Galega officinalisprofessor-weed
Distribution: Occurring west of the Cascades crest in Washington; occurring in scattered locations throughout North America, though not along the southern border.
Habitat: Disturbed areas including wastelots, roadsides, and fields.
Origin: Introduced
Flowers: May-July
Galeopsis bifidabifid hemp nettle
Distribution: Known from Kittitas County in Washington; Alaska to Washington, east across north U.S. and Canada to Atlantic Coast.
Habitat: Disturbed areas, roadsides, and irrigation channels.
Origin: Introduced
Flowers: July-August
Galeopsis tetrahitcommon hemp nettle
Distribution: Chiefly west of the Cascades in Washington; Alaska to Newfoundland, south to Central Plains and Mid-Atlantic states.
Habitat: Meadows and other moist places.
Origin: Introduced from Eurasia
Flowers: July-August
Galinsoga parviflora
Distribution: Sparingly introduced in Klickitat County.
Habitat: Waste places
Origin: Introduced from Central and South America
Flowers: June-October
var. parviflora – small flowered galinsoga, gallant soldier
Galinsoga quadriradiataciliate galinsoga, shaggy galinsoga, quickweed, shaggy soldier
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
Galium aparinecommon bedstraw, common cleavers, goose-grass, sticky-willy
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
Galium bifoliumtwin-leaf bedstraw
Distribution: Chiefly east of the Cascade summits in Washington; British Columbia to California, east to Colorado.
Habitat: Moist to rather dry areas, foothills to high elevations in the mountains.
Origin: Native
Flowers: May-August
Galium borealenorthern bedstraw
Distribution: Widely distributed on both sides of the Cascades in Washington; circumboreal; in North America extending south to California, Texas and West Virginia.
Habitat: In a variety of mesic habitats, from sea level to timber line.
Origin: Native
Flowers: June-August
Galium divaricatumLamarck's bedstraw
Origin: Introduced
Galium humifusumcreeping bedstraw, spreading bedstraw
Origin: Introduced from Mediterranean
Galium kamtschaticumboreal bedstraw
Distribution: Chiefly west of the Cascades in Washington; Alaska south to Washington, east to eastern North America.
Habitat: Moist, cold coniferous woods.
Origin: Native
Flowers: July-August
Galium mexicanumMexican bedstraw
Origin: Native
ssp. asperulum – rough bedstraw
Galium mollugofalse baby's-breath, wild madder
Distribution: Scattered locations in Washington; British Columbia south to California, east to Montana and Wyoming; widely distributed in east of the Mississippi River.
Habitat: Occurring in disturbed soil, waste ground.
Origin: Introduced
Flowers: May-July
Galium odoratumsweet-scented bedstraw
Distribution: Occurring in a few scattered locations west of the Cascades in Washington; British Columbia south to Oregon; scattered areas of central and eastern North America.
Habitat: Woodlands at low elevations.
Origin: Introduced from Europe
Flowers: May-June
Galium oreganumOregon bedstraw
Distribution: From the Cascade Mountains west in Washington; Washington south to Oregon.
Habitat: Moist woods and meadows, from sea level to 5000 feet in the mountains.
Origin: Native
Flowers: June-August
Galium palustrecommon marsh bedstraw
Distribution: Occurring west of the Cascades crest in Washington; Yukon Territory south to Oregon, and also in Montana; also in central and eastern North America.
Habitat: Disturbed, open areas, often where moist.
Origin: Native
Flowers: July-September
Galium serpenticumintermountain bedstraw
Distribution: East of the Cascades in Washington; Washington south to California, east to central Idaho.
Habitat: Dry, open, rocky slopes from fairly low to moderate elevations in the mountains.
Origin: Native
Flowers: May-August
Galium trifidumsmall bedstraw
Distribution: Widely distributed on both sides of the Cascades in Washington; circumboreal; widely distributed throughout North America.
Habitat: Moist places, from sea level to high elevations in the mountains.
Origin: Native
Flowers: June-September
Galium triflorumfragrant bedstraw, three-flowered bedstraw
Distribution: Widely distributed on both sides of the Cascades in Washington; circumboreal; widely distributed throughout North America.
Habitat: Moist woods, from sea level to moderate elevations in the mountains.
Origin: Native
Flowers: June-August
Galium verumlady's bedstraw, yellow spring bedstraw
Distribution: In scattered localities west of the Cascades in Washington; widely distributed throughout North America in except along southern border of U.S.
Habitat: Escaping from cultivation to lawns, roadsides, and other open, disturbed areas.
Origin: Introduced
Flowers: May July
Gamochaeta ustulatapurple cudweed, spoon-leaf cudweed
Distribution: Widespread west of the Cascades in Washington; British Columbia south to California.
Habitat: Usually in sandy soil, often in disturbed areas.
Origin: Native
Flowers: May-October
Garrya fremontiiFremont's silk tassel bearbrush
Distribution: Along the Columbia River in Washington and Oregon; west side of the Cascades in Lane County, Oregon, south and west to the coastal ranges in California.
Habitat: Woodlands and chaparral, low to moderate elevations.
Origin: Native
Flowers: January-May
Gaultheria hispidulacreeping-snowberry
Distribution: Occurring in northeast Washsington; British Columbia east to Labrador, south into northern Idaho.
Habitat: Sphagnum bogs and deep coniferous woods.
Origin: Native
Flowers: May-June
Gaultheria humifusaalpine wintergreen
Distribution: In the Olympics and Cascades mountains of Washington; British Columbia south to northern California, east to the Rocky Mountains from Alberta to Colorado.
Habitat: Subalpine to alpine, usually where moist to wet.
Origin: Native
Flowers: July-August
Gaultheria ovatifoliawestern teaberry, slender wintergreen
Distribution: Chiefly in the Olympics and Cascades mountains in Washington, but also in the northeastern part of the State; British Columbia south to California, east to Idaho and Montana.
Habitat: Forested areas from fairly dry Ponderosa pine to subalpine bogs.
Origin: Native
Flowers: June-August
Gaultheria shallonsalal
Distribution: Chiefly in the Olympics and Cascades mountains in Washington; Alaska south to California.
Habitat: Woods, from sea level to moderate elevation in the mountains.
Origin: Native
Flowers: May-July
Gayophytum decipiensdeceptive groundsmoke
Origin: Native
Gayophytum diffusumspreading groundsmoke
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
Gayophytum heterozygumzigzag groundsmoke
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
Gayophytum humiledwarf groundsmoke
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
Gayophytum racemosumblack-foot groundsmoke, racemose groundsmoke
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
Gayophytum ramosissimumpinyon groundsmoke
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
Genista canariensiscanary-broom
Distribution: Occurring in a few scattered locations east of the Cascades crest in Washington; Washington and California.
Habitat: Disturbed areas including wastelots and roadsides
Origin: Introduced
Flowers: April-June
Genista monspessulanaFrench-broom
Distribution: Introduced as an ornamental in Western Washington, occasionally escaping.
Habitat: Waste areas.
Origin: Introduced
Flowers: June-July
Genista tinctoriaDyer's greenweed
Origin: Introduced
Gentiana affinispleated gentian, prairie gentian, Rocky Mtn. gentian
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
Gentiana calycosaexplorer's gentian, mt. bog gentian
Distribution: In the Cascades, Olympics and Blue Mountains of Washington; British Columbia south to California, east to Alberta, Wyoming, and Utah.
Habitat: Alpine to subalpine meadows.
Origin: Native
Flowers: July-October
Gentiana douglasianaswamp gentian
Distribution: Narrow distribution in Cascade and Olympic Mountains of Washington; Alaska south to Washington.
Habitat: Bogs and tundra.
Origin: Native
Flowers: July-September
Gentiana glaucaglaucous gentian
Distribution: In the North Cascades of Washington; Alaska south to Washington and Montana.
Habitat: Tundra and alpine meadows.
Origin: Native
Flowers: July-September
Gentiana sceptrumKing's gentian, staff gentian
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
Gentianella amarellanorthern gentian
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
var. acuta – felwort, northern gentian
Geocaulon lividumfalse toadflax
Distribution: Occurring from Okanogan County east to Pend Oreille County in Washington; Alaska south to Washington, east to Alberta, northern Idaho, and northwestern Montana.
Habitat: Bogs and open woods to lower alpine slopes.
Origin: Native
Flowers: June-July
Geranium bicknelliinorthern crane's-bill
Distribution: Occurring on both sides of the Cascades in Washington; widely distributed throughout much of North America except along the southern U.S. boundary and lower Great Plains.
Habitat: Woodlands or open fields.
Origin: Native
Flowers: May-August
Geranium carolinianumCarolina geranium
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
Geranium columbinumlong-stalk crane's-bill
Distribution: Chiefly west of the Cascades and along the Columbia River in Washington; occasional introduction in central and eastern United States.
Habitat: Waste places and disturbed ground.
Origin: Introduced from Europe
Flowers: June-August
Geranium dissectumcut-leaf crane's-bill
Distribution: Chiefly west of the Cascades in Washington; British Columbia south to California and Nevada; widely distributed in central and eastern North America.
Habitat: Disturbed ground and waste places.
Origin: Introduced from Europe
Flowers: March-July
Geranium ibericummontane crane's-bill, Spanish crane's-bill, montane geranium, Spanish geranium
Origin: Introduced
Geranium lucidumshining cranes-bill
Distribution: Western Washington; Washington south to California.
Habitat: Disturbed areas such as roadsides and ditches, usually where moist, at low elevations.
Origin: Introduced
Flowers: Apr-June
Geranium molledovefoot geranium
Distribution: Occurring chiefly west of the Cascades crest in Washington; widely distributed throughout much of North America.
Habitat: Disturbed areas, roadsides, moist ground in waste places and lawns.
Origin: Introduced from Europe
Flowers: April-September
Geranium oreganumsticky geranium, western geranium
Distribution: West of the Cascades in southwestern Washington; south to northern California.
Habitat: Meadows and woodlands.
Origin: Native
Flowers: May-July
Geranium ×oxonianum
Origin: Introduced
Geranium purpureumpurple geranium
Origin: Introduced
Geranium pusillumsmall-flower crane's-bill
Distribution: Occurring on both sides of the Cascades; widely distributed throughout North America except along southern border of U.S.
Habitat: Moist, waste places.
Origin: Introduced
Flowers: May-August
Geranium pyrenaicumhedgerow cranesbill
Origin: Introduced
Geranium richardsoniiwhite crane's-bill, white geranium
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
Geranium robertianumstinky bob, herbrobert
Distribution: West of the Cascades in Washington; Alaska south to California, east to Montana; widely distributed in upper Midwest and eastern North America.
Habitat: Mostly in moist, disturbed ground
Origin: Introduced from Europe
Flowers: March-July
Geranium rotundifoliumround-leaved geranium
Origin: Introduced
Geranium viscosissimumsticky purple crane's-bill, sticky purple geranium
Distribution: East of the Cascades in Washington, British Columbia south to California, east to Colorado.
Habitat: Moderately dry areas, low to mid-elevations.
Origin: Native
Flowers: May-August
Geum aleppicumyellow avens
Distribution: Occasional east of the Cascades, British Columbia to California, more common east of the Rockies in southern Canada.
Habitat: Along streams and in marshy or damp woods.
Origin: Native
Flowers: June - July
Geum macrophyllumbigleaf avens, largeleaved avens
Distribution: Both sides of the Cascades, Alaska to Baja California, east through Canada to Nova Scotia
Habitat: Common in moist woods and meadows from sea level to subalpine
Origin: Native
Flowers: April - August
Geum rivalepurple avens, water avens
Distribution: British Columbia and Okanogan County, Washington, east to Alberta, south in the Rocky Mountains to New Mexico.
Habitat: Stream banks, lake shores, bogs and wet meadows, at high elevations.
Origin: Native
Flowers: Late June - July
Geum rossiiRoss's avens
Distribution: In Washington known only from the Wenatchee Mountains; Alaska and northern Canada south in Rocky and Cascades mountains to Nevada, Arizona and New Mexico; also in Far East Russia and Greenland.
Habitat: Arctic tundra, high gravelly meadows and scree slopes.
Origin: Native
Flowers: June- August
Geum triflorumprairie smoke, old man's whiskers, old-man's whiskers
Distribution: Occurring on both sides of the Cascades in Washington; widespread throughout the northern and western regions of North America.
Habitat: Moister places in the sagebrush plains and foothills to subalpine ridges.
Origin: Native
Flowers: April-August
Geum urbanumherb-bennet
Distribution: In scattered locations on both sides of the Cascades crest in Washington; Washington south to Oregon and Utah; also occurring in northeastern U.S.
Habitat: Disturbed areas in including, roadsides, wastelots, and fields.
Origin: Introduced
Flowers: May-September
Gilia capitatabluehead gilia, globe gilia
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
ssp. capitata – bluefield gilia, globe gilia
Gilia inconspicuashy gily-flower
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
Gilia sinuatashy gilia, sinuate gilia, rosy gily-flower
Distribution: East of the Cascades in Washington; Washington south 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
Githopsis specularioidescommon bluecup
Distribution: Both sides of the Cascades in Washington; from southern Washington to southern California.
Habitat: Dry, open places in the valleys and foothills.
Origin: Native
Flowers: May-June
Glechoma hederaceafield balm, creeping Charlie, gill over the ground, groundivy
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
Gleditsia triacanthoshoney locust
Distribution: Occurring east of the Cascades crest in Washington; native to eastern and central North America, but escaped widely throughout western North America.
Habitat: On edge of riparian zones, typically in areas with some level of disturbance.
Origin: Introduced
Flowers: April-June
Glehnia leiocarpaAmerican glehnia
Distribution: Coastal in Washington; Alaska south along the coast to northern California.
Habitat: Sandy beaches and dunes along the coast.
Origin: Native
Flowers: May-July
Glossopetalon spinescensNevada greasewood, spiny green-bush
Origin: Native
var. aridum – spiny green-bush
Glyceria borealissmall floating manna grass
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
Glyceria canadensisCanada mannagrass, rattlesnake mannagrass
Origin: Introduced
var. canadensis – rattlesnake manna grass
Glyceria declinatalow glyceria
Origin: Introduced
Glyceria elatatall mannagrass
Distribution: British Columbia south on both sides of the Cascades to California, east to Montana and New Mexico.
Habitat: Lake margins, stream banks, moist mountain meadows and other wet areas.
Origin: Native
Flowers: May - July
Glyceria fluitanswater mannagrass
Origin: Introduced
Glyceria grandisAmerican mannagrass
Distribution: Alaska south to Oregon, chiefly east of the Cascades; east to northeast United States and south to Virginia and New Mexico.
Habitat: Sloughs, damp meadows and stream borders.
Origin: Native
Flowers: Late June - Early August
var. grandis – reed mannagrass
Glyceria leptostachyaslender-spike manna grass
Origin: Native
Flowers: June - August
Glyceria maximatall mannagrass
Origin: Introduced
Glyceria ×occidentalisnorthwestern manna grass
Origin: Native
Flowers: May - June
Glyceria striatafowl manna grass
Distribution: Alaska south to northern California, east to Newfoundland and Florida.
Habitat: Wet places, bogs, and mountain meadows.
Origin: Native
Flowers: May - July
Glycyrrhiza lepidotaAmerican licorice, wild licorice
Distribution: Distributed east of the Cascades in Washington; British Columbia to Ontario, south to California and Texas.
Habitat: A plant of waste places and low ground, common along streams.
Origin: Native
Flowers: May-August
Gnaphalium palustrelowland cudweed, western marsh cudweed
Distribution: Widely distributed throughout Washington; British Columbia south to California, east to the Great Plains.
Habitat: Open areas at low elevations where moist at least in spring.
Origin: Native
Flowers: May-October
Gnaphalium uliginosummarsh cudweed
Distribution: Widespread throughout Washington; Alaska south to Oregon, east across the central U.S. and Canada to the Atlantic Coast.
Habitat: Moist areas, streambanks and waste ground.
Origin: Introduced
Flowers: July-October
Goodyera oblongifoliagiant rattlesnake-plantain, western rattlesnake-plantain
Distribution: Widely distributed throughout the mountainous and forested areas of Washington; Alaska south to California, east to the Rocky Mountains; Great Lakes Region and eastern Canada/New England.
Habitat: Dry to moist forests, sea level to mid-elevations in the mountains.
Origin: Native
Flowers: July-August
Gossypium hirsutumcotton
Origin: Introduced
Graphephorum wolfiibeardless false oat
Origin: Native
Flowers: June - August
Gratiola ebracteatabractless hedge-hyssop
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to western Montana.
Habitat: Shallow water and muddy shores, and in other wet places in the valleys and plains.
Origin: Native
Flowers: May-August
Gratiola neglectaAmerican hedge-hyssop, clammy hedge-hyssop
Distribution: Occurring on both sides of the Cascades crest in Washington; widely distributed throughout most of North America.
Habitat: In shallow water and on muddy shores, and in other wet places in the valleys and plains.
Origin: Native
Flowers: June-August
Grayia spinosaspiny hopsage
Distribution: Occurring east of the Cascades in Washington; Washington south to California, east to Colorado.
Habitat: Foothills and desert valleys, often in alkaline soil.
Origin: Native
Flowers: April-June
Greeneocharis circumscissacushion cryptantha, matted cryptantha
Distribution: Chiefly east of the Cascades, central Washington to Baja California, east to Utah.
Habitat: Dry, open, usually sandy places in the lowlands.
Origin: Native
Flowers: April - July
Grindelia hirsutulaColumbia gumplant, Oregon gumplant, coastal gumweed, Columbia gumweed, Idaho gumweed, low gumweed, resinweed
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
Grindelia integrifoliaPuget Sound gumplant, Puget Sound gumweed, Willamette Valley gumweed
Distribution: British Columbia to northern California, along the coast, and in the Puget Trough as far south as the head of Willamette Valley.
Habitat: Salt marshes and rocky shores along the coast, and various non-maritime habitats in the Puget Trough.
Origin: Native
Flowers: June - October
Grindelia squarrosacurlycup gumweed, serrate resinweed
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
Gruvelia pusillalittle gruvelia
Distribution: East of the Cascades crest in Chelan and Klickitat counties in Washington; Washington, south to California, introduced and disjunct in Chile.
Habitat: Dry, open places at lower elevations.
Origin: Native
Flowers: May-June
Guizotia abyssinica
Distribution: Eastern portion of Washington; California and scattered areas of central and eastern North America.
Habitat: Disturbed sites at low elevations.
Origin: Introduced
Flowers: June-September
Gutierrezia sarothraekindlingweed, matchweed, broom snakeweed
Distribution: East of the Cascades in Washington, chiefly in southeastern part of state; Alberta to Manitoba, south to California and Texas.
Habitat: Dry, open places in the foothills, valleys and plains.
Origin: Native
Flowers: July-September
Gymnocarpium ×brittonianumhybrid oak fern
Origin: Native
Gymnocarpium disjunctumPacific oak fern, western fern
Distribution: Circumboreal, extending south in North America to Oregon, Arizona and Virginia.
Habitat: Moist woods, streambanks and wet cliffs.
Origin: Native
Gymnocarpium dryopteriscommon fern, northern oak fern
Distribution: Both sides of the Cascades in Washington; Alaska east across northern Canada, south to northern U.S., with disjunct populations scattered throughout western North America.
Habitat: Forest understory, often where moist
Origin: Native
Gypsophila paniculatababy's breath
Distribution: Introduced in the northern half of the United States
Habitat: Noxious weed in eastern Washington and Idaho
Origin: Introduced from Asia
Flowers: June - August