Japan Flora: Small herb with thickened roots; stems 10-35 cm. long, slender; leaves 2, radical, ovate or broadly lanceolate, 4-10 cm. long, 1-2 cm. wide, acute to acuminate, the cauline usually 1, near middle of stem, small; spikes densely flowered, elongate, to 20 cm. long in fruit; bracts green, as long as the ovary, lanceolate, caudate-acuminate; flowers somewhat secund, green; sepals ascending, 1- nerved, the dorsal ovate, about 2 mm. long, obtuse, the lateral sepals slightly narrower and longer; petals oblong, 3-4 mm. long, obtuse; lip 4-5 mm. long, ascending, somewhat broadened at base, inflated, 3-lobed from the base, the lateral lobes short, ascending, the terminal lobe linear, obtuse; ovary 3-4 mm. long. June-July.

Hokkaido (Kushiro); very rare. Korea, China, n. India, Siberia, and Europe.