Japan Flora: Stems about 50 cm. long, subsea pose, often densely cobwebby; radical leaves much larger than the cauline, elliptic to elliptic-lanceolate, 30-60 cm. long, 11-25 cm. wide, narrowed at base, lustrous and glabrous above, slightly cobwebby to glabrous beneath, once to twice pinnarifid, the lobes incised; lower cauline leaves semiclasping; median leaves loosely arranged, small, clasping, narrowly oblong, pin- natifid, loosely cobwebby beneath; heads long-pedunculate, erect at anthesis; involucres depressed-globose, 1.8-2 cm. long, 3-4 cm. wide, cobwebby; bracts 6- or 7-seriate, linear, short spine-tipped, the outer often elongate; corollas 20-22 mm. long. Aug.-Sept. Grassy places in lowlands.