Japan Flora: Rhizomes creeping, slender; leaves 3-7, approximate, ovate-elliptic, ovate- orbicular, or broadly elliptic, 25-3.5 cm. long, 2-3 cm. wide, rounded and mucronulate at apex, rounded or shallowly cordate at base and abruptly decurrent, obsoletely short-toothed, the petioles 2-4 cm. long; scapes 10-20 cm. long, angular, naked except for a few basal scales; racemes rather densely 7- to 17-flowered; flowers white, sometimes pinkish, about 6 mm. across, the bracts lanceolate, membranous, 4-6 mm. long; calyx-segments elliptic or broadly ovate, subacute, about 1.5 times as long as wide; styles thick, scarcely curved; anthers short. July-Aug.

Hokkaido, Honshu (mountains in n. distr.); rare. s. Kuriles and Sakhalin.