Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east to Colorado.
Habitat: From sagebrush plains to alpine slopes.
Flowers: May-August
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Self-pollination, bees, flies
Matted, scapose, grayish perennial, the scapes leafless, pubescent throughout or glabrous above.
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.
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.
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.
PNW Herbaria: Specimen records of Draba oligosperma in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Draba oligosperma checklist entry
OregonFlora: Draba oligosperma information
E-Flora BC: Draba oligosperma atlas page
CalPhotos: Draba oligosperma photos