Japan Flora: Stems 7-10 cm. long, from a long-creeping base; leaves green, oblong-ovate to ovate, 2-35 cm. long, 1.2-2 cm. wide, acute, acute to rounded at base, often oblique, the petioles about 1 cm. long, short-sheathing at base; inflorescence sessile, rather densely 3- to 7-flowered, secund, glabrescent or sparingly papillose-pilose, the bracts lanceolate, 1-1.5 cm. long, nearly erect, ciliate; flowers half-open, white; sepals narrowly ovate, obtuse, 8-10 mm. long; petals broadly oblanceolate, closely appressed to the median sepal; lip nearly as long as the sepals, saccate-inflated at base, pilose within, the limb ovate, obtuse; column about 3/5 as long as the sepals. Woods;
Hokkaido, Honshu, Shikoku, Kyushu; rather rare. Korea and Ryukyus (Amami Oshima).