Page authors: Don Knoke, David Giblin
Camassia quamash
common camas
WTU specimens
Other herbaria

Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to Montana and Utah.

Habitat: Open, moist areas, often where dry by late spring, at low to mid-elevations in the mountains.

Flowers: April-June

Origin: Native

Conservation Status: Not of concern

Description:
General:

Scapose perennial from a deep-seated bulb, the scape 2-7 dm. tall.

Leaves:

Leaves several, all basal, 8-20 mm. broad, considerably shorter than the scape.

Flowers:

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.

Fruit:

Capsule ovoid, 3-celled, 1-2.5 cm. long.

Accepted Name:
Camassia quamash (Pursh) Greene
Publication: Man. Bot. San Francisco. 313. 1894.

Synonyms:
(none provided)
Infraspecies:
ssp. azurea – common camas    In the Puget Trough, Pierce County, Washington, to Grays Harbor County, and on both sides of the Olympics
ssp. breviflora – common camas
ssp. maxima – common camas    West of the Cascades, British Columbia through the Willamette Valley, Oregon; more common northern part of range
ssp. quamash – common camas    Common east of the Cascades, British Columbia and Washington, east to Montana
Additional Resources:

PNW Herbaria: Specimen records of Camassia quamash in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Camassia quamash checklist entry.

E-Flora BC: Camassia quamash atlas page.

CalPhotos: Camassia quamash photos.

USDA Plants: Camassia quamash information.

122 photographs:
Group by