Polemonium
Jacob's-ladder, polemonium, sky-pilot
8 species
1 subspecies and varieties
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Polemonium californicumlow Jacob's-ladder
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
Polemonium carneumroyal Jacob's-ladder, great polemonium, salmon polemonium
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
Polemonium eleganselegant Jacob's-ladder, elegant polemonium
Distribution: Occurring in the Olympics and Cascades mountains in Washington; British Columbia south to Washington.
Habitat: Open, often rocky areas, mid- to high elevations in the mountains.
Origin: Native
Flowers: July-September
Polemonium micranthumannual Jacob's-ladder, annual polemonium
Distribution: Chiefly east of the Cascades, British Columbia to California, east to North Dakota and Utah
Habitat: Common is open plains and foothills, often with sagebrush
Origin: Native
Flowers: March - May
Polemonium occidentalewestern polemonium
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia south to California, east to Montana and Colorado.
Habitat: Very wet places at mid-elevations in the mountains.
Origin: Native
Flowers: June-August
Polemonium pectinatumWashington Jacob's-ladder, Washington polemonium
Distribution: Known only from North Whitman County and south Spokane County, Washington.
Habitat: Moist bottom lands.
Origin: Native
Flowers: May-June
Polemonium pulcherrimumshowy polemonium
Distribution: Widely distributed in Washington; Alaska south to the Sierra Nevada of California, east to Wyoming.
Habitat: High elevations in the mountains, often in open areas above timberline.
Origin: Native
Flowers: May-August
var. pulcherrimum – showy Jacob's-ladder
Polemonium viscosumsticky Jacob's-ladder, sticky polemonium
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