Japan Flora: Rhizomes slender, short; stems 10-20 cm. long, erect, 2-leaved near the middle, the upper part with short, spreading, glandular-pubescence, the lower part glabrous; leaves reniform to cordate, 15-25 mm. long, 10-30 mm. wide, abruptly mucronate, truncate-cordate to truncate-rounded at base，the scalelike leaf broadly lanceolate or wanting, racemes 3- to 10-flow- ered, loose, the bracts ascending, broadly lanceolate, 1-2 mm. long; flowers brownish green; perianth-lobes reflexed; sepals 3- 4 mm. long, strongly reflexed from the base, narrowly lanceolate, obtuse; petals as long as the sepals, narrowly ob-long; lip twice as long as the sepals, broadly cuneate-obovate, bifid, auriculate near the base, the lobes ovate; capsules ellipsoidal, 3-4 mm. long, the pedicels slightly longer. July-Aug. Coniferous woods;

Hokkaido, Honshu (centr. and n. distr.), Kyushu (Mount Sobosan); rare. Ussuri.