Japan Flora: Rhizomes short; stems tufted; leaves evergreen, linear, 20-35 cm. long； 6-10 mm. wide, acuminate, minutely toothed, the short basal sheaths becoming fibrous with age; scapes erect, terete, fleshy, 10-25 cm. long, 1-flowered, with hyaline, sheathing scales; bracts lanceolate, 3-4 cm. long, acute; flowers greenish; sepals rather fleshy, oblanceolate, subobtuse, 3-3.5 cm. long, 7-10 mm. wide; petals simulating the sepals but slightly shorter, ascending; lip slightly shorter than the sepals, white with reddish purple spots, recurved above, papillose within, the lateral lobes small, obtuse; column about 15 mm. long. Mar.-Apr. Grassy places in foothills;

Hokkaido (Okushiri Isl.)> Honshu, Shikoku, Kyushu. China.