Japan Flora: Roots fusiform; stems 20-45 cm. long; leaves 1-2, nearly radical, oblong to narrowly so, 10-20 cm. long, 3-6 cm. wide, obtuse, narrowed at base; scalelike leaves rather large, erect, broadly lanceolate, 2-6 cm. long; racemes rather densely many-flowered, 5-10 cm. long; bracts broadly lanceolate, 15-25 mm. long; flowers white to slighdy green; dorsal sepal broadly ovate, obtuse, 5-nerved, 6-8 mm. long, the lateral sepals broadly lanceolate, 8-10 mm. long, obtuse, 3- to 5-nerved; petals erect, shorter than the dorsal sepal, slighdy thickened, oblique, narrowly ovate, 3-nerved, about 6 mm. long; lip broadly linear, 10-13 mm. long, obtuse; spur 2.5-3 cm. long. May-June.

Honshu (Izu Isls.).

Japan Red List (2000)

The stem is 20-45cm tall and usually has two leaves at the base that are attached in a rosette shape. The leaves are elliptical and about 10-20cm long. In May to June, it produces many slightly dense, white flowers with a tinge of pale green. The lip is broadly linear and about 10-13mm long. The spur is about 2.5-3cm long. This is a species native to the area.

It is estimated that there are less than 50 individuals currently in existence