Distribution: Widely distributed on both sides of the Cascades crest in Washington; British Columbia to California, east to Montana and Utah.
Habitat: Open, moist areas, often where dry by late spring, from lowlands to mid-elevations in the mountains.
Flowers: April-June
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bees, flies, butterflies, beetles, wasps
Scapose perennial from a deep-seated bulb, the scape 2-7 dm. tall.
Leaves several, all basal, 8-20 mm. broad, considerably shorter than the scape.
Inflorescence a raceme, many-flowered, 5-30 cm. long; pedicels 10-20 mm. long, spreading, arched or ascending in flower, incurved-erect in fruit; flowers pale to deep blue or violet, somewhat irregular; tepals 6, distinct, 15-35 mm. long and 2-8 mm. broad, narrowed at base, lowest segment curved outward and downward away from the others, all withering separately and exposing the ovary; stamens 6, anthers yellow or blue, style slender, stigmas 3.
Capsule ovoid, 3-celled, 1-2.5 cm. long.
PNW Herbaria: Specimen records of Camassia quamash in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Camassia quamash checklist entry
OregonFlora: Camassia quamash information
E-Flora BC: Camassia quamash atlas page
CalPhotos: Camassia quamash photos