Japan Flora: Rhizomes short, slender; stems 20-40 cm. long, with a few bladeless sheaths at base; leaf suberect, lanceolate or linear-oblong, 4- 10 cm. long, 7-12 mm. wide, obtuse, decurrent and forming two narrow wings on stem; flowers 2-2.5 cm. long, solitary, terminal, rose-purple; bract leaf like, 2-4 cm. long, 3-6 mm. wide, usually longer than ovary; sepals 3-5 mm. wide, obtuse, the dorsal broadly oblong-oblanceolate, the lateral narrower, as long as the dorsal; petals narrowly oblong, very obtuse, slightly shorter than the sepals, minutely and irregularly toothed on upper margin; lip slightly longer than the perianth segments, 3- lobed, the terminal lobe obovate, distinctly recurved, with fleshy hairs within and on margin, the lateral lobes deltoid; ovary about 1.5 cm. long. May-July. Bogs;

Hokkaido, Honshu, Shikoku, Kyushu.Korea and China.