Plants terrestrial, 25-28 cm tall. Rhizome slender, several noded. Stem ascending, 6-8 cm, 4-or 5-leaved. Leaves widely spaced along stem, abaxially grayish white, adaxially green, rarely with irregular grayish markings, elliptic to oblong, strongly oblique, 5-8 × 1.5-2.5 cm, base subrounded, apex acuminate; petiole-like base and tubular sheath 1-1.5 cm. Peduncle green, to ca. 12 cm, glabrous to sparsely pubescent, with 3 sterile bracts; rachis 6-8 cm, densely many flowered, not secund; floral bracts ovate-lanceolate, ca. 11 × 4 mm, glabrous, apex acuminate. Flowers opening weakly, whitish green, small; pedicel and ovary green, cylindric-fusiform, 7-8 mm, glabrous. Sepals whitish green, glabrous, 1-veined; dorsal sepal ovate, ca. 3.5 × 2.5 mm, concave, apex obtuse; lateral sepals ovate, oblique, ca. 4.5 × 2.8 mm, apex obtuse. Petals white, linear-lanceolate, strongly falcate, ca. 3.8 × 1 mm, 1-veined, apex acute; lip ovate, ca. 4.2 mm; hypochile concave-saccate, ca. 0.8 mm, inside densely papillose; epichile white, ovate, ca. 3.3 × 2.7 mm, with a band of papillae from base to midway along its length, apex subacute, not recurved. Column ca. 1.8 mm; anther broadly ovoid; rostellum short, remnant shallowly bifid. Fl. Oct-Nov.
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