Japan Flora: Rhizomes slender, long-creeping; leaves 4-8, approximate or nearly so, deep green, elliptic, obsoletely toothed, rounded to abruptly mucronate at apex, rounded to subtruncate, rarely somewhat acute at base, the petioles 1-3 cm. long; scapes 10-20 cm. long, erect, the scales linear-lanceolate, acuminate, 3-7 mm. long, sometimes absent; flowers 3-5, rarely to 7, white, 12-15 mm. across, the bracts broadly linear, gradually acuminate, 3-5 mm. long; calyx-segments deltoid, acuminate; styles exserted; capsules 4-5 mm. across. July-Aug. Woods in mountains;

Hokkaido, Honshu.