Plants terrestrial, 13-20 cm tall. Rhizome slender, many noded. Stem ascending, to 6 cm, 2-or 3(-5)-leaved. Leaves widely spaced or clustered toward apex of stem, thinly textured, both surfaces green, without white markings, ovate or ovate-lanceolate, 1.5-6 × 1-3 cm, rounded at base, apex acute; petiole-like base and tubular sheath 1-3 cm. Peduncle pale red-brown, 5-9 cm, pubescent, with 2 sterile bracts; rachis 2-5 cm, laxly (2 or)3-5-flowered, secund; floral bracts pale reddish brown, ovate-lanceolate, ca. 20 × 6-7 mm, margin ciliate, apex acute. Flowers opening widely, pale green tinged pale reddish brown, large; pedicel and ovary pale reddish brown, cylindric-fusiform, 14-15 mm, pubescent toward apex. Sepals green tinged reddish brown at apex, glabrous, 1-veined; dorsal sepal elliptic, 12-15 × 5-6 mm, concave, apex acute; lateral sepals widely spreading or reflexed, elliptic, 12-15 × 5-6 mm, apex acute. Petals greenish white tinged brown at apex, rhombic, oblique, 12-15 × 4.5-6.5 mm, 1-veined, base attenuate, apex acute; lip greenish brown tinged white at apex, sometimes streaked darker green on veins, ovate, cymbiform, 12-14 × 8-11 mm, membranous; hypochile concave-saccate, inside densely papillose; epichile recurved or spreading forward, ligulate, 3-4 mm, apex acute. Column ca. 4 mm; anther lanceolate; pollinia 10-12 mm; viscidium linear; rostellum 7-8 mm, remnant deeply bifid. Fl. Aug-Sep. 2n = 22.
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