Japan Flora: Glabrous, erect perennial about 20 cm. high, with ovoid tuberous roots; leaves radical, several broadly oblanceolate, 3-6 cm. long, 1-1.5 cm. wide; scape or stem erect, with few, appressed, scalelike leaves; spikes 4-5 cm. long, 7- to 12-flowered; bracts lanceolate, acuminate, 5-15 mm. long; sepals 3-nerved, about 3 mm. long, the dorsal sepal broadly ovate, erect, obtuse, the lateral sepals obliquely ovate, reflexed; lip 3-lobed nearly to the base, about 3.5 mm. long, the lateral lobes spreading, filiform, flexuous, about 4 mm. long, the terminal lobe 2.5 mm. long, broadly linear; spur nearly straight, short-cylindric, about 6 mm. long, obtuse; ovary about 1 cm. long. Oct.

Honshu (s. Kanto Distr.), Shikoku, Kyushu; very rare.