Bistorta
bistort
2 species
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Bistorta bistortoidesAmerican bistort, western bistort
Distribution: Occurring on both sides of the Cascades in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Streambanks and moist or swampy meadows, middle elevations in the mountains to alpine slopes.
Origin: Native
Flowers: May-August
Bistorta viviparaalpine bistort, serpent-grass
Distribution: Occurring on both sides of the Cascades in northern Washington; Alaska south to Oregon, east to Montana, and south in the Rockies to New Mexico; across Canada to Newfoundland, south to Minnesota and Maine.
Habitat: Damp areas, shady woods, meadows and streambanks at mid- to high elevations in the mountains.
Origin: Native
Flowers: June-September