Distribution: Occurring east of the Cascades crest in the southeastern counties in Washington; southeastern Washington to the Hells Canyon area of Oregon and Idaho.

Habitat: Dry, open, often rocky slopes from lowland valleys to the montane.

Flowers: April-July

Origin: Native

Growth Duration: Perennial

Conservation Status: Sensitive in Washington (WANHP)

Pollination: Bees, flies, butterflies, beetles, wasps

Glabrous, acaulescent, parsley-scented perennial from a stout taproot and branching, woody base, 1.5-4 dm. tall.

Leaves bright green, ternate-pinnately dissected into moderately numerous, small, flat ultimate segments 1-6 mm. long and up to 2.5 mm. wide, the segments tending to lie in the same plane.

Inflorescence of compound umbels, the rays unequal, 2-8 cm. long at maturity; involucre wanting; involucel of several well-developed, narrow bractlets; calyx teeth none; flowers yellow; pedicels 3-15 mm. long.

Fruit elliptic, 5.5-10 mm. long, glabrous, the lateral wings one-half as wide to as wide as the body.