Distribution: Introduced from Alaska to California, and across much of the northern half on the United States
Habitat: Uncommon in lawns and wastelands
Flowers: June - July
Origin: Introduced from Europe
Conservation Status: Not of concern
Glabrous annual, 1-10 dm. tall, with milky juice.
Basal leaves petiolate, the blade lanceolate or oblanceolate, finely toothed to pinnately parted, up to 15 cm. long and 4 cm. wide; reduced cauline leaves sessile and auriculate, linear, often involute.
Heads several to numerous, 30-70 flowered; involucre 6-9 mm. high, its inner bracts 12-15, with fine hairs and sometimes with stalked glands as well, the outer bracts about one-third as long; corollas all ligulate, yellow.
Achenes 2.5-4.5 mm. long, dark reddish-brown, spindle-shaped, with 10 ribs.