Distribution: Occurring east of the Cascades crest in the southeastern counties in Washington; southeastern Washington to the canyons of the Snake and lower Salmon Rivers in eastern Oregon and western Idaho.

Habitat: Open slopes in grasslands, on rocky or fine-textured, loess-derived soils, from valleys to the montane.

Flowers: April-May

Origin: Native

Growth Duration: Perennial

Conservation Status: Threatened in Washington (WANHP)

Pollination: Bees, flies, butterflies, beetles, wasps

Sparingly-branched perennial from a short taproot, 2-7 dm. tall.

Leaves cauline and basal, irregularly pinnately dissected into unequal narrow segments up to 1 cm. long. Taproot short, tuberous-thickened or with 2 or more globose-thickened portions.

Inflorescence of compound umbels, the rays 3-7 cm. long at maturity; involucre none; involucel of inconspicuous, narrow bractlets; calyx teeth obsolete, flowers yellow; pedicels 4-10 mm. long.

Fruit glabrous, elliptic, 5-8 mm. long, the lateral wings well-developed, but barely as wide as the body.