Japan Flora: Small terrestrial herb with slighdy thickened roots; stems 7-15 cm. long, 1-leaved at base; leaves radical, petiolate, oblong to broadly ovate, or broadly elliptic, 4-6 cm. long, 2-5 cm. wide, obtuse to rounded at apex; flowers usually 2, pale rose with small deeper colored dots on lip, rarely white; bracts narrowly oblong to narrowly ovate, subacute, 1-2 cm. long; sepals broadly lanceolate, 8-10 mm. long, acuminate, 3-nerved, gradually narrowed to a somewhat obtuse tip, the dorsal sepal erect, the lateral sepals ascending-spreading; petals lanceolate, rather obtuse, slightly shorter than the sepals; lip broadly ovate, mucronate, about 1 cm. long, slightly contracted above the middle and obsoletely 3-Iobed; spur linear, slightly curved, slender, 7-10 mm. long, subacute, as long as or slightly shorter than the ovary. May-June. Mossy places in woods in mountains;
Hokkaido (Kushiro), Honshu (centr. and n. distr.), Shikoku; rare. Korea and Ussuri.