Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; Washington to California, east to Idaho, Utah, and Nevada, east across the southern U.S. to eastern North America.
Habitat: Disturbed ground, usually where moist, where escaped from nearby cultivation.
Origin: Introduced from Europe
Conservation Status: Not of concern
Celery-scented, yellow-green, glabrous biennial, 5-12 dm. tall.
Leaves 1-2 pinnate, shiny, with large, toothed leaflets.
Umbels nearly sessile, often in the leaf axils; involucre wanting; flowers white.