Japan Flora: Plants evergreen, epiphytic, with slender elongate rhizomes; pseudobulbs absent; leaves solitary at the nodes, rather fleshy, flat, elliptic to ovate, 7-13 mm. long, 5-10 mm. wide, obtuse, nearly sessile, the nerves inconspicuous; scapes 1-flowered, 7-10 mm. long, delicate, with few small scales at the base, the bracts ovate, thinly membranous, about 1.5 mm. long, obtuse; flowers pale yellow; sepals broadly lanceolate, gradually acuminate, 7-8 mm. long; petals oblong, glabrous, much shorter than the dorsal sepal; lip broadly lanceolate, obtuse, slightly recurved, shorter than the sepals. June. Tree-trunks;

Honshu (centr. distr. and westw.), Shikoku, Kyushu; rather rare. s. Korea.