Distribution: West of the Cascades in Washington along the coast; Alaska and the Aleutian Islands, south to California.
Habitat: Bluffs and rocky or sandy beaches along the seashore.
Conservation Status: Not of concern
Nearly glabrous perennial from a short crown and fleshy, fibrous roots, the single stem 2-10 dm. high.
Leaves all cauline, pinnately 2-4 times compound, appearing to have deeply cleft leaflets.
Umbels 1-several, with 8-30 sub-equal rays 1.5-5 cm. long; involucre often wanting; involucel of well-developed, narrow bractlets 4-8 mm. long, equalling the pedicles; calyx teeth none; flowers white.
Fruit elliptic-oblong, dorsally compressed, glabrous, 5-8.5 mm. long, the lateral wings well developed.