Vascular Plants

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

Browse by common 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
Common names beginning with J:
Annual Jacob's-ladder (Polemonium micranthum)
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and northern Great Plains.
Habitat: Common is open plains and foothills, often with sagebrush.
Origin: Native
Flowers: March-May
Growth Duration: Annual
Elegant Jacob's-ladder (Polemonium elegans)
Distribution: Occurring in the Olympics and Cascades mountains in Washington; British Columbia to Washington.
Habitat: Open, often rocky areas, middle to high elevations in the mountains.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Low Jacob's-ladder (Polemonium californicum)
Distribution: Cascade-Sierra region of Washington to California, east to Idaho
Habitat: Shaded or moist places, moderate to mid-elevations in the mountains
Origin: Native
Flowers: May - August
Growth Duration: Perennial
Royal Jacob's-ladder (Polemonium carneum)
Distribution: Olympic and Grays Harbor region of Washington, and Skamania County in Washington south through the Cascades to the Klamath region of Oregon and adjacent California.
Habitat: Thickets, woodlands and forest openings, from near sea level to moderate elevations in the mountains.
Origin: Native
Flowers: May - July
Growth Duration: Perennial
Sticky Jacob's-ladder (Polemonium viscosum)
Distribution: Know only from Okanogan County, Washington in Washington; British Columbia south to Oregon and Nevada, east to the Rocky Mountains.
Habitat: Open rocky places at high elevations in the mountains, commonly above timberline.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Washington Jacob's-ladder (Polemonium pectinatum)
Distribution: Occurring east of the Cascades crest, where endemic to central and eastern Washington.
Habitat: Moist bottom lands.
Origin: Native
Flowers: May-June
Growth Duration: Perennial
False jagged chickweed (Lepyrodiclis holosteoides)
Distribution: Occurring east of the Cascades crest in Whitman County, Washington; eastern Washington to adjacent west-central Idaho.
Habitat: Pea and wheat fields, roadsides.
Origin: Introduced
Flowers: May-June
Jagged-chickweed (Holosteum umbellatum)
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east across most of North America to the Atlantic Coast.
Habitat: Disturbed, open areas in sagebrush desert, roadsides, fields, wastelots, and other disturbed areas.
Origin: Introduced from Europe
Flowers: April-May
Growth Duration: Annual
Rock jasmine (Androsace septentrionalis)
Distribution: Occurring east of the Cascades crest in north-central Washington; Alaska to California, east to the Great Plains, Great Lakes regiona, and eastern Canada.
Habitat: Alpine meadows.
Origin: Native
Flowers: May-August
Growth Duration: Annual
Fleshy jaumea (Jaumea carnosa)
Distribution: Occurring west of the Cascades crest along coastal waters in Washington; British Columbia to southern California.
Habitat: Tidal flats and marshes.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Marsh jaumea (Jaumea carnosa)
Distribution: Occurring west of the Cascades crest along coastal waters in Washington; British Columbia to southern California.
Habitat: Tidal flats and marshes.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Boreal jewelweed (Impatiens noli-tangere)
Distribution: Alaska to Oregon, from the coast inland to Idaho.
Habitat: Moist woods.
Origin: Native
Flowers: July - September
Growth Duration: Annual
Pacific jewelweed (Impatiens ×pacifica)
Distribution: Occurring in lowlands west of the Cascades in Washington; Washington south to Oregon.
Habitat: Wet areas including wetlands, sloughs, forest edges, and disturbed areas.
Origin: Native
Flowers: August-October
Growth Duration: Annual
Small-flowered jewelweed (Impatiens parviflora)
Distribution: Currently (2016) known in Washington from King County (only); southwestern British Columbia, western Washington and northwestern Oregon; also occurring in eastern North America.
Habitat: Disturbed forest edge and understory at low elevations, often where at least seasonally moist.
Origin: Introduced
Flowers: June-July
Growth Duration: Annual
Spotted jewelweed (Impatiens capensis)
Distribution: Occurring chiefly west of the Cascades crest in Washington; widely distributed throughout much of North America.
Habitat: Moist woods, lake, pond, and stream edges, and other wetland areas at low elevations.
Origin: Introduced; not native west of the Rocky Mountains
Flowers: July-October
Growth Duration: Annual
Spurless jewelweed (Impatiens ecornuta)
Distribution: Occurring on both sides of the Cascades in Washington; southern British Columbia to northwest Oregon, east to Montana.
Habitat: Moist, shady woods.
Origin: Native
Flowers: August-September
Growth Duration: Annual
Varied jewelweed (Impatiens aurella)
Distribution: Extreme southeast Washington and northern Idaho to southeast British Columbia and western Montana.
Habitat: Moist woods.
Origin: Native
Flowers: July - September
Growth Duration: Annual
Jimsonweed (Datura stramonium)
Distribution: Scattered localities in eastern Washington; widely distributed throughout North America.
Habitat: Waste places and roadsides, often in dry soil.
Origin: Introduced
Flowers: June-August
Growth Duration: Annual
Job's-tears (Coix lacryma-jobi)
Origin: Introduced from tropical Asia
Spotted Joe-pye weed (Eutrochium maculatum)
Distribution: Known only from Whatcom County in Washington; southern British Columbia to Washington, east across the Rocky Mountains and Great Plains to the Atlantic Coast.
Habitat: Swamps and other moist, open places, from sea level to middle elevations.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Spotted Joepyeweed (Eutrochium maculatum)
Distribution: Known only from Whatcom County in Washington; southern British Columbia to Washington, east across the Rocky Mountains and Great Plains to the Atlantic Coast.
Habitat: Swamps and other moist, open places, from sea level to middle elevations.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Bog John's-wort (Hypericum anagalloides)
Distribution: Occurring on both sides of the Cascades in Washington; British Columbia south to Baja California, east to Montana.
Habitat: Moist ground, from the coast to mid-elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Canadian St. John's-wort (Hypericum canadense)
Origin: Introduced from eastern North America
Growth Duration: Annual, Perennial
Common St. John's-wort (Hypericum perforatum)
Distribution: Widespread on both sides of the Cascades crest in Washington; widespread throughout much of North America.
Habitat: Noxious weed of fields, meadows, roadsides, forest edge, wastelots, and other disturbed areas from the lowlands to near subalpine.
Origin: Introduced from Europe
Flowers: June-July
Growth Duration: Perennial
Creeping St. John's-wort (Hypericum anagalloides)
Distribution: Occurring on both sides of the Cascades in Washington; British Columbia south to Baja California, east to Montana.
Habitat: Moist ground, from the coast to mid-elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Dwarf St. John's-wort (Hypericum mutilum)
Origin: Introduced from eastern North America
Growth Duration: Annual, Perennial
Greater Canadian St. John's-wort (Hypericum majus)
Distribution: Occurring in localities throughout Washington; British Columbia south to Oregon, east to the Atlantic Coast of North America.
Habitat: Wet ground.
Origin: Both native and introduced from eastern North America
Flowers: July-September
Growth Duration: Annual
Marsh St. John's-wort (Triadenum fraseri)
Origin: Introduced from eastern North America
Northern St. John's-wort (Hypericum boreale)
Origin: Introduced from eastern North America
Growth Duration: Perennial
Norton's St. John's-wort (Hypericum scouleri)
Distribution: Widely distributed throughout Washington; British Columbia south to California, east to the Rocky Mountains.
Habitat: Moist places from along the coast to well up in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Pale St. John's-wort (Hypericum ellipticum)
Origin: Introduced from eastern North America
Scouler's St. John's-wort (Hypericum scouleri)
Distribution: Widely distributed throughout Washington; British Columbia south to California, east to the Rocky Mountains.
Habitat: Moist places from along the coast to well up in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Western John's-wort (Hypericum scouleri)
Distribution: Widely distributed throughout Washington; British Columbia south to California, east to the Rocky Mountains.
Habitat: Moist places from along the coast to well up in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Johnny jump-up (Viola tricolor)
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
Growth Duration: Annual
Prairie Junegrass (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
Growth Duration: Perennial
Or jungle-rice (Echinochloa colona)
Origin: Introduced from the tropics
Growth Duration: Annual
Common juniper (Juniperus communis)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, Great Lakes, and eastern North America; also in Eurasia and northern Africa.
Habitat: Lowlands to rocky alpine areas.
Origin: Native
Cones: June-August
Growth Duration: Perennial
Mountain juniper (Juniperus communis)
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, Great Lakes, and eastern North America; also in Eurasia and northern Africa.
Habitat: Lowlands to rocky alpine areas.
Origin: Native
Cones: June-August
Growth Duration: Perennial
Rocky Mountain juniper (Juniperus scopulorum)
Distribution: Occurring west of the Cascades crest in Washington; southwest British Columbia to Oregon, east to Nebraska.
Habitat: Coastal islands to inland valleys and lower mountains.
Origin: Native
Cones: May-June
Growth Duration: Perennial
Seaside juniper (Juniperus scopulorum)
Distribution: Occurring west of the Cascades crest in Washington; southwest British Columbia to Oregon, east to Nebraska.
Habitat: Coastal islands to inland valleys and lower mountains.
Origin: Native
Cones: May-June
Growth Duration: Perennial
Western juniper. (Juniperus occidentalis)
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Idaho and Nevada.
Habitat: Desert foothills and lower mountains.
Origin: Native
Cones: May-June
Growth Duration: Perennial
Jupiter's-beard (Centranthus ruber)
Distribution: Introduced in Oregon, California, Utah and Arizona
Habitat: Garden ornamental, occasionally escapes
Origin: Introduced from Eurasia
Growth Duration: Perennial