Draba cana
lance-leaved draba
Specimens
Photos

Distribution: Reported from northern Washington; Alaska to California, east to the Rocky Mountains, northern Great Plains, Great Lakes region, and northeastern North America.

Habitat: On open knolls or dry meadows to rock crevices, from subalpine to alpine.

Flowers: June-August

Origin: Native

Conservation Status: Sensitive in Washington (WANHP)

Description:
General:

Perennials, base simple or short-branched; stems 0.6-3.8 dm, branched distally or unbranched, pubescent; trichomes simple, 0.5-1 mm, with 4-10-rayed trichomes to 0.2 mm.

Leaves:

Basal leaves form rosettes, petioles ciliate, blades linear to oblanceolate or oblong, 0.5-3.5 cm long and 1.5-11 mm broad, margins entire or dentate, ciliate near base and apex with simple trichomes less than 1 mm, both surfaces pubescent with short-stalked trichomes with 4-12 rays; cauline leaves 3-10 or less commonly up to 17, sessile, lanceolate to ovate or oblong, margins entire or dentate, pubescent surfaces as basal leaves, simple and forked trichomes beneath near base.

Flowers:

Inflorescence racemose, generally 15-47 flowered, bracteate toward base, usually significantly elongated in fruit, rachis somewhat rigid, densely pubescent, trichomes with 4-10 rays and few simple trichomes; pedicels nearly erect or ascending, straight, 2-5 or sometimes 10 mm, pubescence same as rachis; sepals 4, green or light purple, oblong to ovate, 1.5-2 mm, pubescent with simple and few-rayed trichomes; petals 4, white, narrower toward base, usually 2.3-3.7 mm long and 0.7-1.7 mm broad; anthers 0.1-0.2 mm, ovate.

Fruits:

Siliques 6-11 mm long and 1.5-2 mm broad, generally linear, plane or somewhat twisted, flattened; valves pubescent with 3-7 rayed, short- stalked trichomes; ovaries contain 28-48 ovules; seeds ovoid, 0.5-0.7 mm long and 0.3-0.5 mm broad.

Accepted Name:
Draba cana Rydb.
Publication: Bull. Torrey Bot. Club. 29: 241. 1902.

Synonyms & Misapplications:
Draba breweri S. Watson var. cana (Rydb.) Rollins
Draba lanceolata Royle, misapplied [HC]
Additional Resources:

PNW Herbaria: Specimen records of Draba cana in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Draba cana checklist entry.

E-Flora BC: Draba cana atlas page.

CalPhotos: Draba cana photos.

USDA Plants: Draba cana information.

25 photographs:
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