Violaceae
Violet Family
1 genera
24 species
6 subspecies and varieties
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Viola aduncaearly blue violet
Distribution: Occurring throughout Washington; ranging across North America.
Habitat: Dry to moist meadows and open woods, moderate to high elevations in the mountains
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 canadensis
Distribution: British Columbia south through Washington and Oregon, east to the Atlantic Coast.
Habitat: Usually on loamy soils, moist woodlands and forests at moderate elevations.
Origin: Native
Flowers: May-July
var. rugulosa – Canada 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
Distribution: Both sides of the Cascades in Washington, Alaska to California, east to Montana.
Habitat: Moist woods and stream banks, low to mid-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 langsdorffiiAleutian violet
Origin: Native
Flowers: April - August
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
Origin: Native
var. bakeri – Baker violet, Baker's violet
var. praemorsa – canary violet, upland yellow violet, yellow montane 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 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
Origin: Native
Flowers: June - August
Viola rivinianadog violet, wood violet
Origin: Introduced
Viola selkirkiigreat spurred violet, Selkirk`s violet
Origin: Native
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 woodland violet
Origin: Native
Flowers: April - June
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 trinervata3-nerved violet, Rainier violet, sagebrush violet
Distribution: Okanogan County, Washington, to Malheur County, Oregon.
Habitat: Sagebrush flats and rocky hillsides, often on lithosol, where vernally moist.
Origin: Native
Flowers: March - June
Viola ×wittrockiana
Origin: Introduced