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; noxious.
Origin: Introduced from Eurasia
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
Distribution: Occurring west of the Cascades crest in Washington; Washington to California; also in southeastern U.S.
Habitat: Disturbed areas at low elevation.
Origin: Introduced
Flowers: July-September
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
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Great Plains in the U.S.
Habitat: Forest openings, meadows, and open hillsides from low to moderate elevations.
Origin: Native
Flowers: June-August
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: Occurring east of the Cascades crest in Washington; Washington south to California, east to central Idaho and Nevada.
Habitat: Dry, open, rocky slopes from fairly low to middle 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: Occurring chiefly west of the Cascades crest in Washington; Alaska to California.
Habitat: Forest understory and edge marine headlands, 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 from Europe
Flowers: April-June
Genista monspessulanaFrench broom
Distribution: Occurring in scattered locations west of the Cascades crest in Washington; southwestern British Columbia to California, also in western Idaho.
Habitat: Waste areas, roadsides, and other disturbed open areas.
Origin: Introduced from Europe
Flowers: June-July
Genista tinctoriadyer's greenweed
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
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
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 dalmaticumDalmatian crane's-bill
Origin: Introduced
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: Occurring west of the Cascades crest in Washington; British Columbia to California.
Habitat: Disturbed areas such as roadsides and ditches, usually where moist, at low elevations.
Origin: Introduced from Europe
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, prairies, balds, and forest edge.
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 ×oxonianumcrane's-bill
Distribution: Occurring west of the Cascades crest in lowland western Washington; Washington to northwestern Oregon.
Habitat: Disturbed forest understory or edge at low elevations.
Origin: Introduced from Europe
Flowers: May-June
Geranium purpureumpurple crane's-bill, purple geranium
Distribution: Occurring west of the Cascades crest and in the Columbia River Gorge in Washington; Washington to California.
Habitat: Roadsides, fields, lawns, wastelots, and other disturbed open areas at low elevation.
Origin: Introduced from Europe
Flowers: May-June
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 robertianumherb-Robert, stinky-Bob
Distribution: Occurring west of the Cascades crest in Washington, where its distribution continues to expand; Alaska south to California, east to Montana; widely distributed in upper Midwest and eastern North America.
Habitat: Forest understory and forest edges, riparian zones, and other lowland areas with natural or man-made disturbances.
Origin: Introduced from Europe
Flowers: March-August
Geranium rotundifoliumround-leaved geranium
Origin: Introduced
Geranium viscosissimumsticky purple crane's-bill, sticky purple geranium
Distribution: Widely distributed east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains..
Habitat: Moist meadows and slopes, and forest openings, from the foothills to the middle elevations.
Origin: Native
Flowers: May-July
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, large-leaved avens
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to Baja California, east to the Great Plains and east across Canada to the Atlantic Coast.
Habitat: Common in moist woods and meadows from sea level to subalpine.
Origin: Native
Flowers: April-August
Geum rivalepurple avens, water avens
Distribution: Occurring east of the Cascades crest in the northeastern counties in Washington British Columbia to northeastern Washington, east to the Rocky Mountains, northern Great Plains, Great Lakes region and northeastern North America; circumboreal.
Habitat: Stream banks, lake shores, bogs and wet meadows from middle elevations to the subalpine.
Origin: Native
Flowers: June-August
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
Distribution: Occurring on both sides of the Cascades crest in Washington; Yukon Territory to California, east to the northern Great Plains, and Great Lakes regions.
Habitat: Prairies, balds, and moister places in the sagebrush plains, from the 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: 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
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 central and eastern 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 from central and eastern North America
Flowers: April-June
Glehnia leiocarpaAmerican glehnia
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
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: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Ontario and Texas.
Habitat: Stream and riverbanks, riparian corridors, and other wet areas, often associated with disturbance.
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 on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, Great Lakes Region, and eastern North America.
Habitat: Dry to moist forests, sea level to middle elevations in the mountains.
Origin: Native
Flowers: June-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 crest in Washington; Washington 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: 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
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: 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
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 oak-fern
Distribution: Occurring in forested areas on both sides of the Cascades crest except in southeastern Washington; Alaska to Oregon, east to Alberta, Idaho, and Montana, and disjunct in Wyoming; circumboreal.
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