Lewisia
bitterroot, lewisia
6 species
4 subspecies and varieties
4 subspecies and varieties
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Lewisia columbiana – Columbia lewisia
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Idaho and Montana.
Habitat: Open gravelly or rocky slopes and rock crevices at middle to high elevations in the mountains.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Idaho and Montana.
Habitat: Open gravelly or rocky slopes and rock crevices at middle to high elevations in the mountains.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
• var. columbiana – Columbia lewisia
• var. rupicola – Columbia lewisia
Lewisia cotyledon – Siskiyou lewisia
Distribution: Occurring west of the Cascades crest in the Goat Rocks Wilderness, where it has been intentionally planted and may persist; otherwise southwestern Oregon to adjacent California.
Habitat: Alpine areas.
Origin: Introduced from Oregon and California
Flowers: July-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in the Goat Rocks Wilderness, where it has been intentionally planted and may persist; otherwise southwestern Oregon to adjacent California.
Habitat: Alpine areas.
Origin: Introduced from Oregon and California
Flowers: July-August
Growth Duration: Perennial
Lewisia nevadensis – Nevada bitterroot
Distribution: Occurring along and east of the Cascades crest, and in the Blue Mountains in Washington; southern British Columbia to California, east to the Rocky Mountains.
Habitat: Open, often gravelly, moist to mesic areas at middle elevations in the mountains to the alpine.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring along and east of the Cascades crest, and in the Blue Mountains in Washington; southern British Columbia to California, east to the Rocky Mountains.
Habitat: Open, often gravelly, moist to mesic areas at middle elevations in the mountains to the alpine.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Lewisia pygmaea – least bitterroot, alpine lewisia, dwarf lewisia
Distribution: Occurring in the Olympic and Cascade Mountains of Washington; British Columbia south to California, east to the Rocky Mountains.
Habitat: Open, often gravelly, moist to rather dry areas, mid- to high elevations in the mountains.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring in the Olympic and Cascade Mountains of Washington; British Columbia south to California, east to the Rocky Mountains.
Habitat: Open, often gravelly, moist to rather dry areas, mid- to high elevations in the mountains.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Lewisia rediviva – bitterroot
Distribution: Occurring east of the Cascades crest in Washington; southern British Columbia to California, east to Montana, Wyoming, Utah, Colorado, and Arizona.
Habitat: Open gravelly and rocky areas from sagebrush plains to moderate elevations in the mountains.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; southern British Columbia to California, east to Montana, Wyoming, Utah, Colorado, and Arizona.
Habitat: Open gravelly and rocky areas from sagebrush plains to moderate elevations in the mountains.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
• var. rediviva – bitterroot
Lewisia triphylla – three leaf bitterroot, three leaf lewisia
Distribution: Occurring chiefly east of the Cascades crest in Washington; Washington to California, east to Montana and south in the Rocky Mountains.
Habitat: Open, usually sandy areas where vernally moist, ponderosa pine forests to subalpine meadows.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; Washington to California, east to Montana and south in the Rocky Mountains.
Habitat: Open, usually sandy areas where vernally moist, ponderosa pine forests to subalpine meadows.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
