Japan Flora: Roots thick; leaves oblanceolate, obtuse, gradually narrowed and petiolelike at base, pinnately lobed to cleft; heads large, about 5 cm. across; involucres 17-19 mm. long, the outer bracts erect, oblong to ovate-oblong, narrowed at tip and corniculate, dark purplish, distinctly membranous on margin; achenes brown to pale yellow-brown, oblong, about 4 mm. long, 1.3 mm. wide, narrowed at tip, with dense spinelike tubercles on upper part, gradually less so toward the base. July. Near seashores.