Vascular Plants

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


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Scientific names beginning with V:
18 genera
115 species, 31 subspecies and varieties
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Vaccaria hispanicacowcockle
Distribution: Occurring in scattered locations across Washington; widely distributed throughout most of North America.
Habitat: Roadsides, railways and old fields.
Origin: Introduced from Europe
Flowers: May-August
Vaccinium cespitosumdwarf bilberry, dwarf huckleberry
Distribution: Widely distributed in the mountainous areas of Washington; Alaska south to California, east to Colorado; across southern Canada and the northern tier of states from Minnesota to Maine.
Habitat: Moist rocky ridges and meadows, mid- to high elevations in the mountains.
Origin: Native
Flowers: May-July
Vaccinium corymbosumhigh-bush blueberry
Distribution: Widespread and native in eastern United States; introduced in Washington.
Habitat: Open swamps, sandy margins of ponds and lakes.
Origin: Introduced
Flowers: May - June
Vaccinium deliciosumCascade blueberry, Rainier blueberry, blueleaf huckleberry
Distribution: Ocurring in the Olympic and Cascade Mountains of Washington; British Columbia south to California, east to Idaho.
Habitat: Forest openings and mountain meadows, mid- to high elevations.
Origin: Native
Flowers: May-July
Vaccinium macrocarponcultivated cranberry, large cranberry
Distribution: In scattered locations in lowlands west of the Cascades crest; introduced British Columbia south to California; native eastern North
Origin: Introduced from northeastern United States
Flowers: May - June
Vaccinium membranaceumsquare-twig blueberry, tall huckleberry, thin-leaved huckleberry
Distribution: Widely distributed throughout forested and mountainous areas of Washington; British Columbia south to California, east the Rocky Mountains; Ontario and Michigan.
Habitat: Common in dry to moist coniferous forests and open areas, moderate to mid-elevations in the mountains.
Origin: Native
Flowers: May-July
Vaccinium myrtilloidesvelvet-leaf blueberry
Distribution: British Columbia east to Labrador, and in the northern tier of states, Montana to West Virginia; Okanogan County in Washington.
Habitat: Mountain meadows, forest openings, bogs and barrens.
Origin: Native
Flowers: May - June
Vaccinium myrtillusdwarf blueberry, low blueberry
Distribution: Chiefly east of the Cascades, British Columbia to Oregon, east to Montana, and south in the Rockies to Arizona and New Mexico
Habitat: Forest openings, mid-elevations in the mountains
Origin: Native
Flowers: May - August
Vaccinium ovalifoliumAlaska blueberry, oval-leaf blueberry
Distribution: Occurring in forested and mountainous areas throughout Washington; Alaska south to Oregon, east to Idaho, and then scattered areas to the Atlantic Coast.
Habitat: Openings in coniferous forests, moderate to fairly high elevations.
Origin: Native
Flowers: May-July
Vaccinium ovatumevergreen huckelberry
Distribution: Occurring west of the Cascades crest in Washington; British Columbia south to California.
Habitat: Coniferous forests at low elevations.
Origin: Native
Flowers: April-August
Vaccinium oxycoccossmall cranberry
Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska south to California, east to Idaho, across Canada; from the upper Midwest to the Atlantic coast.
Habitat: Usually in sphagnum bogs.
Origin: Native
Flowers: May-July
Vaccinium parvifoliumred huckleberry
Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska to California.
Habitat: Moist woods, forest edges and openings, from sea level to middle elevations in the mountains.
Origin: Native
Flowers: April-June
Vaccinium scopariumgrouseberry
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to Colorado.
Habitat: Open, dry forests, mid- to high elevations in the mountains.
Origin: Native
Flowers: May-August
Vaccinium uliginosumbog bilberry, bog blueberry
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Nevada, Utah, Wyoming and Montana, east across northern North America to the Atlantic.
Habitat: Bogs and fens from low elevation to subalpine.
Origin: Native
Flowers: June-August
Vahlodea atropurpureaarctic-hair grass
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
Valeriana acutilobadowny-fruit valerian
Origin: Native
var. pubicarpa – downy fruit valerian, downy-fruited valeriana
Valeriana columbianaWenatchee valerian
Distribution: Wenatchee Mountains and Cle Elum Ridge, east slope of the Cascades, in Washington
Habitat: Rocky, open slopes, often on basalt, at mid-elevations in the mountains
Origin: Native
Flowers: May - June
Valeriana dioicawoodland valerian
Distribution: British Columbia to Nova Scotia in Canada, south to northwest Washington, central Idaho and northwest Wyoming.
Habitat: Moist places in the mountains, often in wet meadows.
Origin: Native
Flowers: May - July
var. sylvatica – northern valerian
Valeriana edulistobacco-root, edible valerian
Distribution: Occurring in the eastern region of Washington; Southern British Columbia south into Washington, Idaho, and Montana, east to Ontario and Ohio.
Habitat: A wide variety of open, somewhat moist habitats, from the foothills to rather high elevations in the mountains.
Origin: Native
Flowers: June-August
var. edulis – tobacco root
Valeriana occidentalissmall-flower valerian, western valerian
Origin: Native
Flowers: May - July
Valeriana officinalisallheal, garden heliotrope
Origin: Introduced from Europe
Valeriana scouleriScouler's valerian
Distribution: Mostly west of the Cascade summits, British Columbia to California
Habitat: Wet meadows and moist woods, sea level to mid-elevations in the mountains
Origin: Native
Flowers: April - July
Valeriana sitchensisSitka valerian
Distribution: Widely distributed throughout much of Washington; Alaska to California, east to Idaho and Montana.
Habitat: Common in moist areas at mid- to high elevations in the mountains.
Origin: Native
Flowers: June-August
Valerianella locustalamb's-lettuce
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to the Rocky Mountains; eastern half of North America east of the Great Plains.
Habitat: Moist, open places, often in disturbed soil.
Origin: Introduced from Europe
Flowers: April-May
Vallisneria americanawild celery, American eelgrass, tapegrass
Distribution: Native from Quebec to Texas and Florida; introduced in Dry Falls Coulee, Grant County, and several lakes west of the Cascades in Washington; also in Oregon and Idaho
Habitat: Ponds, lakes and quiet streams
Origin: Introduced from eastern North America
Flowers: July - September
Vancouveria hexandrawhite inside-out-flower
Distribution: West of the Cascades, south Puget Trough, Washington, to northern California
Habitat: Moist, shady woods, low to moderate elevations
Origin: Native
Flowers: May - June
Ventenata dubiaVentenata
Distribution: Chiefly in the eastern portion of Washington; British Columbia south to California, east to the Rocky Mountains; also in eastern North America.
Habitat: Roadsides, pastures, crop land, and other disturbed sites.
Origin: Introduced
Flowers: June-July
Veratrum californicumCalifornia false hellebore
Distribution: Occurring on both sides of the Cascades crest in Washington; Washington south to California, east to the Rocky Mountains.
Habitat: Moist meadows and woodlands, lowlands to subalpine.
Origin: Native
Flowers: June-August
var. californicum – skunk cabbage, California wild hellebore
var. caudatum – skunk cabbage, tailed wild hellebore
Veratrum insolitumsiskiyou wild hellebore
Distribution: Benton County, Oregon, south into northern California.
Habitat: Open prairies to thickets, and forested or open rocky slopes.
Origin: Native
Flowers: July - September
Veratrum virideAmerican false hellebore, green false hellebore, Indian-poke
Distribution: Widely distributed throughout the forest and mountainous areas of Washington; Alaska south to California, east to the northern Rocky Mountains; eastern North America from Alabama to Newfoundland.
Habitat: Moist meadows and woodlands, lowlands to subalpine.
Origin: Native
Flowers: June-September
var. eschscholzianum – American wild hellebore
Verbascum blattariamoth mullein
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Atlantic Coast.
Habitat: Roadsides, fields, ditches, meadows, wastelots, and other disturbed open areas, often where dry.
Origin: Introduced from Eurasia
Flowers: May-September
Verbascum bombyciferum
Origin: Introduced
Verbascum densiflorum
Origin: Introduced
Verbascum thapsusflannel mullein, great mullein
Distribution: Distributed widely throughout Washington; widely distributed throughout North America.
Habitat: Common on open, disturbed ground, roadsides and logged areas in the mountains.
Origin: Introduced from Eurasia
Flowers: June-September
Verbascum virgatumwand mullein
Distribution: Lowland western Washington; Washington south to California, east across the southern U.S. and in eastern North America.
Habitat: Open disturbed areas at low elevations.
Origin: Introduced
Flowers: June-August
Verbena ×bingenensis
Origin: Native
Verbena bonariensispurpletop vervain
Origin: Introduced
Verbena bracteatacarpet vervain
Distribution: Occurring chiefly east of the Cascades in Washington; widely distributed throughout North America.
Habitat: Disturbed open areas in natural and impacted settings including roadsides and waste lots.
Origin: Native
Flowers: May-September
Verbena hastatawild hyssop, blue verbena
Distribution: Chiefly east of the Cascades in Washington; widely distributed throughout North America.
Habitat: Marshes, wetlands, streamsides, and other riparian areas.
Origin: Native
Flowers: July-September
Verbena officinalisherb of the cross, European vervain
Origin: Introduced from Europe
Verbena strictahoary vervain
Distribution: Occurring in the northeastern region of Washington; widely distributed throughout much of the U.S. and northeastern Canada.
Habitat: Roadsides and other dry, open places.
Origin: Native
Flowers: June-September
Veronica americanaAmerican brooklime, American speedwell
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Ditches, slow moving streams, oxbows, and other water bodies, from low to middle elevations in the mountains.
Origin: Native
Flowers: May-August
Veronica anagallis-aquaticablue water speedwell
Distribution: Occurring chiefly east of the Cascades crest in Washington; widely distributed throughout much of North America.
Habitat: In or along slow-moving streams and ditches at low to moderate elevations.
Origin: Introduced from Europe
Flowers: June-September
Veronica argute-serratabilobed speedwell
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to Oregon, east to the Rocky Mountains and Great Plains, also in scattered areas of eastern North America.
Habitat: Disturbed, open areas at low to moderate elevations.
Origin: Introduced from Eurasia
Flowers: April-June
Veronica arvensiscorn speedwell, wall speedwell
Distribution: Occurring on both sides of the Cascades crest in Washington; widely distributed throughout much of North America.
Habitat: Disturbed ground, gardens and roadsides
Origin: Introduced from Eurasia
Flowers: April-September
Veronica catenatachain speedwell
Distribution: Occurring chiefly east of the Cascades crest in Washington; widely distributed throughout much of North America.
Habitat: Slow-moving streams and ditches.
Origin: Introduced from Europe
Flowers: June-August
Veronica chamaedrysGermander speedwell
Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska to California, east to Montana, also in eastern North America.
Habitat: Roadsides, fields, lawns, gardens, and other disturbed areas.
Origin: Introduced from Europe
Flowers: May-June
Veronica cusickiiCusick's speedwell
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to Idaho and Montana.
Habitat: Open, moist, rocky slopes from subalpine to alpine.
Origin: Native
Flowers: July-September
Veronica dissectafeather-leaf kittentails
Distribution: Occurring in the Olympic Mountains in Washington; Idaho and Montana to Utah, disjunct in Washington.
Habitat: Stony, subalpine to alpine slopes.
Origin: Native
Flowers: May-August
ssp. lanuginosa – cut-leaf kittentails
Veronica filiformisthread-stalk speedwell
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California, east to Montana, also in eastern North America.
Habitat: Weed of lawns and gardens
Origin: Introduced from Eurasia
Flowers: April-June
Veronica hederifoliaivy-leaf speedwell
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; British Columbia to Oregon, east to Idaho and Utah; other scattered locations in central and eastern North America.
Habitat: Waste places, disturbed soil.
Origin: Introduced from Europe
Flowers: April-June
Veronica ×lackschewitziiLackschewitz's speedwell
Distribution: Known only from Yakima County in Washington; distribution in North America not currently known.
Habitat: Slow-moving streams and ditches.
Origin: Introduced from Europe
Flowers: June-August
Veronica longifolialong-leaf speedwell
Distribution: Known from only a few localities west of the Cascades crest in Washington; also known from British Columbia and Montana.
Habitat: Disturbed areas, where escaped from cultivation.
Origin: Introduced from Europe
Flowers: June-July
Veronica missuricatailed kittentails
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Idaho and Montana.
Habitat: Moist forest slopes.
Origin: Native
Flowers: March-May
ssp. major – tailed kittentails
ssp. missurica – mountain kittentail
ssp. stellata – starry tailed kittentails
Veronica officinalisPaul's betony, common speedwell
Distribution: Occurring chiefly west of the Cascades crest in Washington; widely distributed throughout much of the northern half of North America and the southeastern U.S.
Habitat: Weed of wastelots, and other disturbed open and forested areas.
Origin: Introduced from Europe
Flowers: April-July
Veronica peregrinapurslane speedwell
Distribution: Widely distributed throughout most of Washington; widely distributed throughout North America.
Habitat: Swales, wet meadows, stream banks, and other moist places, from the lowlands to moderate elevations in the mountains.
Origin: Both native (var. xalapensis) and introduced (var. peregrina) varieties
Flowers: April-September
var. peregrina – purslane speedwell
var. xalapensis – purslane speedwell
Veronica persicabird-eye speedwell, Persian speedwell
Distribution: Occurring on both sides of the Cascades crest in Washington; widely introduced in much of North America.
Habitat: Lawns and waste ground.
Origin: Introduced from Europe
Flowers: March-May
Veronica politagray speedwell
Distribution: Occurring in scattered locations in the southeastern counties of Washington; southeastern Washington and adjacent Idaho, also in central and eastern North America.
Habitat: Roadsides, fields, lawns, and other disturbed open areas.
Origin: Introduced from Eurasia
Flowers: March-May
Veronica regina-nivalisround-leaved kittentails, snow queen
Distribution: Occurring west of the Cascades crest in Washington; Washington to California.
Habitat: Forest understory at low to moderate elevations.
Origin: Native
Flowers: March-May
Veronica rubrared coraldrops, red kittentails
Distribution: Occurring east of the Cascades crest in Washington; Washington to Oregon, east to Idaho and Montana.
Habitat: Open slopes and dry meadows in the foothills and lowlands.
Origin: Native
Flowers: April-May
Veronica schizanthafringe-petal kittentails, fringed kittentails
Distribution: Occurring in the Olympics and Cascades mountains foothills of western Washington; Washington to Oregon.
Habitat: Moist ground at mid-elevations in the mountains.
Origin: Native
Flowers: May-June
Veronica scutellatagrass-leaf speedwell, marsh speedwell, skullcap speedwell
Distribution: The northern two-thirds of the temperate zone in North America; also in Eurasia.
Habitat: Wet places, from the lowlands to moderate elevations in the mountains.
Origin: Native
Flowers: May - September
Veronica serpyllifoliathyme-leaved speedwell
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
Habitat: Moist meadows and shores, from the lowlands to the subalpine.
Origin: Both native and introduced
Flowers: May-August
var. humifusa – thyme-leaved speedwell
var. serpyllifolia – thyme-leaved speedwell
Veronica triphyllosfinger speedwell
Origin: Introduced from Europe
Veronica vernaspring speedwell
Origin: Introduced
Veronica wormskjoldiiAmerican alpine speedwell
Distribution: Both sides of the Cascades in Washington; Alaska to California, east to Montana, Colorado and New Mexico.
Habitat: Moist ground and seeps, mid- to high elevations in the mountains.
Origin: Native
Flowers: July-September
Viburnum edulehigh-bush cranberry, squashberry
Distribution: Widely distributed on both sides of the Cascades in Washington; Alaska south to Newfoundland, south to northern Oregon, Colorado and Pennsylvania.
Habitat: Moist woods and swamps.
Origin: Native
Flowers: May-July
Viburnum ellipticumwestern blackhaw, oval-leaved viburnum
Distribution: Occurring west of the Cascades crest chiefly along the southern border in Washington; southern Washington to northern California.
Habitat: Thickets, bottom lands, and open woods at low to middle elevations.
Origin: Native
Flowers: May-June
Viburnum lantanawayfaring-tree
Origin: Introduced
Viburnum opulushighbush cranberry
Distribution: Scattered localities throughout Washington; British Columbia south to the Columbia River Gorge, east to Idaho and Montana.
Habitat: Moist woods at low to moderate elevations.
Origin: Native
Flowers: May-July
var. americanum – American bush cranberry, cranberry-tree
var. opulus – high-bush cranberry
Viburnum tinuslaurustinus
Origin: Introduced
Vicia americanaAmerican vetch
Distribution: Widely distributed on both sides of the Cascades crest throughout much of Washington; Alaska to California, east across North America, except in the southeastern U.S., to the Atlantic Coast.
Habitat: Moist forest openings, forest edge, thickets, meadows, prairies, and disturbed areas.
Origin: Native
Flowers: May-July
var. americana – American vetch
Vicia craccatufted vetch, bird vetch
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; British Columbia to California, in scattered locations elsewhere in North America.
Habitat: Roadsides, fields, meadows, wastelots, and other disturbed open areas.
Origin: Introduced from Europe
Flowers: May-July
Vicia hirsutahairy vetch, tiny vetch
Distribution: Occurring west of the Cascades crest and east in the Columbia River Gorge in Washington; Alaska to California, also in Idaho and Montana.
Habitat: Roadsides, forest edge, meadows, thickets, wastelots, and other disturbed open areas.
Origin: Introduced from Europe
Flowers: April-July
Vicia lathyroidesspring vetch
Distribution: Occurring west of the Cascades crest in the Puget Sound lowlands in Washington; British Columbia to California; also in southeastern U.S.
Habitat: Roadsides, fields, wastelots, and other disturbed areas.
Origin: Introduced from Europe
Flowers: April-June
Vicia luteayellow vetch
Distribution: Occurring west of the Cascades crest in the Puget Trough in Washington; Washington to California, also in the southeastern U.S.
Habitat: Roadsides, fields, lawns, wastelots, and other disturbed open areas.
Origin: Introduced from Eurasia
Flowers: April-June
Vicia nigricansgiant vetch
Distribution: Occurring west of the Cascades crest in the coastal counties and east in the Columbia River Gorge in Washington; along the coast from Alaska to California, inland to the Willamette Valley in Oregon.
Habitat: Beach margins and headlands, forest openings, and along streams near the coast.
Origin: Native
Flowers: May-July
var. gigantea – giant vetch
Vicia pannonicaHungarian vetch
Distribution: Occurring west of the Cascades crest in the Puget Trough in Washington; Washington to California.
Habitat: Roadsides, fields, wastelots, and other disturbed open areas.
Origin: Introduced from Eurasia
Flowers: May-June
Vicia sativatare, common vetch
Distribution: Occurring on both sides of the Cascades crest and east in the Columbia River Gorge in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
Habitat: Roadsides, fields, forest edges, thickets, lawns, wastelots, and other disturbed open areas.
Origin: Introduced from Eurasia
Flowers: April-July
var. angustifolia – tare, common vetch
var. sativa – common vetch
Vicia tetraspermasmooth tare, lentil vetch, slender vetch
Distribution: Occurring west of the Cascades crest in Washington; southwestern British Columbia to California, also in northern Idaho and western Montana.
Habitat: Roadsides, fields, forest edge, wastelots, and other disturbed areas.
Origin: Introduced from Europe
Flowers: May-August
Vicia villosahairy vetch, winter vetch, woolly vetch
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
Habitat: Roadsides, meadows, grasslands, prairies, and other disturbed open areas.
Origin: Introduced from Eurasia and North Africa
Flowers: May-September
var. glabrescens – hairy vetch, winter vetch, woolly vetch
var. villosa – hairy vetch, winter vetch, woolly vetch
Vinca majorgreater periwinkle
Distribution: Occasionally escapes from gardens, west side of the Cascades.
Habitat: Moderately moist soil.
Origin: Introduced from Europe
Flowers: June - August
Vinca minorlesser periwinkle
Distribution: Introduced in scattered locations across Washington, moreso in western lowlands; occurring in much of eastern North America, where it is considered invasive.
Habitat: Somewhat moist disturbed areas.
Origin: Introduced from Europe
Flowers: March-May
Viola aduncaearly blue violet, wild dog violet
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Dry to moist meadows and open woods, from the lowlands to subalpine areas.
Origin: Native
Flowers: April-August
Viola arvensisEuropean field pansy
Distribution: Both sides of the Cascades in Washington; introduced throughout the United States and Canada.
Habitat: Frequently escapes from cultivation.
Origin: Introduced from Europe
Flowers: March-June
Viola canadensisCanadian violet, rugose violet
Distribution: Occurring east of the Cascades crest in Washington; Alaska to Oregon, east to the Rocky Mountains, further east across North America to the Atlantic Coast.
Habitat: Forest openings, riparian zones, and thickets from low to middle elevations.
Origin: Native
Flowers: May-July
var. rugulosa – rugose violet
Viola flettiiFlett's violet, Olympic violet
Distribution: Endemic to the northern Olympic Mountains, Washington.
Habitat: Alpine rock crevices and talus slopes at high elevations.
Origin: Native
Flowers: June-August
Viola glabellapioneer violet, stream violet
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Alberta and Montana.
Habitat: Moist woods and stream banks, low to middle elevations in the mountains.
Origin: Native
Flowers: March-July
Viola howelliiHowell's violet
Distribution: West of the Cascade crest in Washington; southern British Columbia south to northern California.
Habitat: Moist woods and prairies at low to moderate elevations.
Origin: Native
Flowers: April-May
Viola lanceolatalance-leaved violet
Origin: Introduced from eastern and central North America
Flowers: May - June
Viola langsdorffiiAlaska violet, Aleutian violet
Distribution: Occurring west of the Cascades crest in Washington; Alaska to California.
Habitat: Peatlands, shores, snowmelt communities, and wet meadows, from lowlands to middle elevations.
Origin: Native
Flowers: April-July
Viola macloskeyismall white violet
Distribution: British Columbia to Alberta, south in the mountains to California.
Habitat: Boggy and wet ground from low to mid-elevations in the mountains.
Origin: Native
Flowers: May-August
Viola nephrophyllaLeConte violet, northern bog violet
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to Newfoundland, south on the east side of the Cascades to California, east to Arizona.
Habitat: Moist places, especially in meadows and along streams.
Origin: Native
Flowers: May-July
Viola nuttalliiNuttall's violet
Distribution: Occurring chiefly east of the Cascades crest in Washington; Britsh Columbia to California, east to the Rocky Mountains.
Habitat: Grassland, sagebrush and juniper flats, and moist to dry openings in coniferous forests.
Origin: Native
Flowers: April-July
var. bakeri – Baker's violet
var. praemorsa – canary violet, upland yellow violet
var. vallicola – valley violet, yellow sagebrush violet
Viola odoratasweet blue violet
Distribution: In scattered locations throughout Washington; introduced and escaping at various location in the United States.
Habitat: Sheltered, disturbed areas in somewhat moist soil.
Origin: Introduced
Flowers: March - May and August - September
Viola orbiculatadarkwoods violet, evergreen yellow violet, round-leaved violet
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to Oregon, east to Montana and Wyoming.
Habitat: Open woods, mid- to high elevations in the mountains.
Origin: Native
Flowers: May-August
Viola palustrismarsh violet
Distribution: British Columbia to California, east to the Rocky Mountains and near the Canadian border to Maine and Labrador
Habitat: Moist meadows and streambanks, low to mid-elevations in the mountains
Origin: Native
Flowers: May - July
Viola pluviaerain violet
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Idaho and Montana; Eurasia.
Habitat: Wet areas at low to moderate elevations, including in part to full shade.
Origin: Native
Flowers: April-July
Viola purpurea
Distribution: Chiefly east of the Cascades, Okanogan County, Washington, to California, east to Montana, Wyoming and Arizona
Habitat: Open, rocky, fairly dry slopes, moderate to high elevations in the mountains
Origin: Native
Flowers: May - August
ssp. venosa – goosfoot violet, purplish violet
Viola renifoliakidney-leaf white violet
Distribution: Occurring east of the Cascades crest in the north-central to northeastern counties in Washington; Alaska to northern Washington, east to the Rocky Mountains, northern Great Plains, Great Lakes region, and northeastern North America
Habitat: Peatlands, riparian zones, swamps, seeps, and damp thickets.
Origin: Native
Flowers: June-August
Viola rivinianadog violet, wood violet
Origin: Introduced
Viola selkirkiigreat spurred violet, Selkirk`s violet
Distribution: Occurring east of the Cascades crest in the northeast counties in Washington; Alaska to northesast Washington, east across the northern U.S. and Canada to the Atlantic Coast.
Habitat: Damp forests and thickets.
Origin: Native
Flowers: May-July
Viola sempervirensevergreen violet, redwood violet
Distribution: Occurring west of the Cascades crest in Washington; Brithish Columbia south to California.
Habitat: Moist woods, low to mid-elevations in the mountains.
Origin: Native
Flowers: March-June
Viola sheltoniifan violet, shelton's violet
Distribution: Chiefly east of the Cascades, from near Cle Elum, Kittitas County, Washington, south to Baja California, east to Idaho
Habitat: Chaparral or open forest, often under ponderosa pine
Origin: Native
Flowers: April - June
Viola sororianorthern blue violet, northern woodland violet
Distribution: Occurring east of the Cascades crest in northeastern Washington; Yukon Territory to California, east to the Rocky Mountains, northern Great Plains, Great Lakes region, and northeastern North America.
Habitat: Dry to moist forest openings, thickets, meadows, and stream banks at middle elevations.
Origin: Native
Flowers: May-July
Viola tricolorJohnny jump-up
Distribution: Garden escape in scattered locations throughout Washington; similarly escaped throughout most of North America.
Habitat: Disturbed areas near cultivated setting in towns and cities.
Origin: Introduced
Flowers: April - September
Viola trinervatadesert pansy, 3-nerved violet, sagebrush violet
Distribution: Occurring east of the Cascades crest in Washington; north-central Washington to southeastern Oregon.
Habitat: Sagebrush flats and rocky hillsides, often on lithosol, where vernally moist.
Origin: Native
Flowers: March-June
Viola ×wittrockiana
Origin: Introduced
Vitis labruscafox grape-vine
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
Vitis ripariariver-bank grape
Origin: Introduced from eastern United States
Flowers: May - July
Vitis viniferaEuropean grape
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; southwestern British Columbia to the Willamette Valley in western Oregon, also in Columbia River Gorge and Hells Canyon.
Habitat: Forest edge, fields, and other disturbed areas where escaping from cultivation.
Origin: Introduced from Europe
Flowers: June-July
Vulpia bromoidesbrome fescue
Distribution: Introduced from southern British Columbia to southern California and Arizona, occasional farther east.
Habitat: From ocean beaches and salt marshes to sagebrush deserts.
Origin: Introduced
Flowers: April - June
Vulpia microstachyssmall fescue
Origin: Native
Vulpia myurosrattail fescue, rattail six-weeks grass
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
Vulpia octoflorasix–weeks fescue
Origin: Native
var. hirtella – six-weeks fescue
var. octoflora – six-weeks fescue