Spiranthes
ladies-tresses, pearl-twist
3 species
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Spiranthes diluvialis – diluvial ladies'-tresses
Distribution: Occurring east of the Cascades crest in Washington; Washington to Idaho, Montana, Wyoming, and Colorado.
Habitat: Moist to wet meadows, marshes, and riparian areas.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Washington to Idaho, Montana, Wyoming, and Colorado.
Habitat: Moist to wet meadows, marshes, and riparian areas.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Spiranthes porrifolia – western ladies'-tresses
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Idaho.
Habitat: Moist to swampy areas.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Idaho.
Habitat: Moist to swampy areas.
Origin: Native
Flowers: July-August
Growth Duration: Perennial
Spiranthes romanzoffiana – hooded ladies'-tresses
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains and across the northern U.S. and Canada to the Atlantic Coast.
Habitat: Seasonally moist to swampy areas, sometimes in disturbed areas.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains and across the northern U.S. and Canada to the Atlantic Coast.
Habitat: Seasonally moist to swampy areas, sometimes in disturbed areas.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
