Japan Flora: Nearly glabrous annual or biennial; stems stout, 50-100 cm. long, often branched, hollow; lower leaves oblong-lanceolate, 15-50 cm. long, 5-8 cm. wide, winged- pctiolate, pinnately parted to divided, irregularly spine- toothed ; median leaves sessile, auriculatoclasping; heads about 2 cm. across, umbelliform, yellow, the peduncles glandular- hairy; involucres 1.2-1.5 cm. long; achcncs narrowly obovate, 2.5-3 mm. long, with scabcrulous ribs; pappus about 6 mm. long. May-Aug. Waste grounds and roadsides in low­lands.

Hokkaido, Honshu, Shikoku, Kyushu; common. Sakhalin, Korea, Formosa, Ryukyus, Europe, and N. America.