Distribution: Occurring chiefly west of the Cascades crest in lowland western Washington; widely distributed throughout much of North America.
Habitat: Roadsides and wasteland.
Origin: Introduced; native to the Mediterranean
Conservation Status: Not of concern
Stout, short-lived, glabrous and glaucous perennial with a strong anise odor, 1-2 m. tall, the single stem branched above.
Leaves 3-ternate-pinnate, petiolate, the blades up to 4 dm. long and wide, the ultimate segments filiform, 4-40 mm. long and less than 1 mm. wide.
Inflorescence of compound umbels, the rays 10-40, unequal, 2-8 cm. long at maturity; involucre and involucel wanting; calyx teeth obsolete; flowers yellow.
Fruit oblong, sub-terete, glabrous, with prominent ribs, 3.5-4 mm. long.