Japan Flora: Rather fleshy herb 15-30 cm. high, thinly long-hairy or rarely glabrate; stems with a whitish basal sheath or scale, or with last year’s sterile blade persistent; sterile blade thick-herbaceous, 5-angled in outline, 3- or 4-ternate, 5-10 cm. long, 6-12 cm. wide, petiolate, the segments obtuse, the ultimate ones ovate, lobed, crenulate- to mncronate-toothed, the petiole arising immediately above the base; fertile panicle long-pedunculate, pyramidal, dense, 4-8 cm. long. Aug.-Oct.
Hokkaido, Honshu (mountains of centr. and n. distr.). Korea, Manchuria, Ussuri, Sakhalin, Kuriles, Kamchatka to Alaska.