Page author: David Giblin
Draba oligosperma
few-seeded draba whitlow-grass
WTU specimens
Other herbaria

Distribution: In the North Cascades mountains in Washington; Alaska south to California, east to Colorado.

Habitat: Plains to moderate elevations in the mountains.

Flowers: May-July

Origin: Native

Conservation Status: Not of concern

Description:
General:

Matted, scapose, grayish perennial, the scapes leafless, pubescent throughout or glabrous above.

Leaves:

Leaves tufted, imbricate, linear to linear-spatulate, 3-12 mm. long and 0.75-1.75 mm. broad, the mid-vein and margins thickened, with hairs on the margins with branches on both sides of the hair stem, the lower surface covered with similarly-branched hairs, the long axis of the hairs paralleling the mid-nerve of the leaf.

Flowers:

Inflorescence of 3- to 15-flowered racemes; pedicles 3-10 mm. long; sepals 4, erect; petals 4, yellow to whitish, fading with age, 3-5 mm. long; stamens 6; style 0.1-1 mm. long.

Fruits:

Silicles ovate to elliptic or oblong-obovate, 2.5-8 mm. long and 2-4 mm. broad, somewhat inflated, glabrous or pubescent with simple, forked, or comb-like hairs.

Accepted Name:
Draba oligosperma Hook.
Publication: Fl. Bor.-Amer. 1: 51. 1830. 1830.

Synonyms & Misapplications:
Draba oligosperma Hook. var. andina Nutt.
Draba oligosperma Hook. var. microcarpa Blank.
Draba oligosperma Hook. var. oligosperma [HC]
Draba subsessilis S. Watson [Abrams]
Additional Resources:

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

WA Flora Checklist: Draba oligosperma checklist entry.

E-Flora BC: Draba oligosperma atlas page.

CalPhotos: Draba oligosperma photos.

USDA Plants: Draba oligosperma information.

5 photographs:
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