Plants terrestrial, 10-23 cm tall. Rhizome slender. Stem erect, 4-7-leaved. Leaves rosulate at base of stem, green, without white markings, elliptic to lanceolate-elliptic, 1.5-3.5 × 0.7-1.5 cm, base cuneate, apex acute; petiole-like base and tubular sheath 0.8-1.8 cm. Peduncle 4.5-9 cm, pubescent, with 2-9 sterile bracts; rachis 3.5-10 cm, densely many flowered, secund; floral bracts linear-lanceolate or linear, to 12 mm, basal ones slightly exceeding flowers, pubescent, apex acuminate. Flowers opening weakly, white or pale green, small; pedicel and ovary cylindric-fusiform, 4-6 mm, pubescent. Sepals white or pale green, outer surface pubescent, 1-veined; dorsal sepal narrowly ovate, 3-5 × ca. 2 mm, apex subacute; lateral sepals weakly spreading, narrowly ovate, oblique, 3-5 × ca. 2.2 mm, apex subacute. Petals oblong-ligulate, oblique, 3-5 × ca. 1.5 mm, 1-veined, apex slightly obtuse; lip cymbiform, 3-4 mm; hypochile concave-saccate, glabrous, inside with 4 obscure veins; epichile oblong, minutely papillose, apex obtuse. Column ca. 1.5 mm; anther transversely elliptic, ca. 0.8 mm; rostellum remnant shallowly bifid. Fl. Aug-Oct.
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