Plants terrestrial, 8-15 cm tall. Rhizome slender, few noded. Stem ascending, 6-10 cm, 4-6-leaved. Leaves widely spaced or occasionally somewhat clustered toward apex of stem, green, without white markings, ovate to oblong, oblique, 1.5-3 × 0.8-2 cm, base rounded or cuneate, apex acute; petiole-like base and tubular sheath 1-1.5 cm. Peduncle green, ca. 1 cm, glabrous; rachis 1-3.5 cm, densely 3-9-flowered, subsecund; floral bracts lanceolate, 11-18 × 3-4.5 mm, glabrous, apex acuminate. Flowers opening weakly, white, sometimes tinged pale pink, medium-sized; pedicel and ovary green, cylindric-fusiform, 7-12 mm, glabrous. Sepals glabrous, 1-veined; dorsal sepal oblong, 9-13 × 3.5-4.5 mm, concave, apex slightly obtuse or acute; lateral sepals ovate-oblong, oblique, 9-13 × 3.5-5 mm, concave, apex acute. Petals rhombic, 9-12 × 3.5-4 mm, 1-veined, base cuneate, apex acute; lip white, ovate, cymbiform, 8-10 × 4-5 mm; hypochile concave-saccate, inside papillose; epichile ligulate, apex acute, not decurved. Column ca. 3 mm; anther lanceolate, ca. 5 mm; rostellum ca. 4 mm, remnant deeply bifid. Fl. Aug-Oct. 2n = 28, 56.
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