Plants 16-35 cm tall. Stem dark reddish brown, 4-11 cm, 5-7-leaved. Leaves abaxially grayish green, adaxially green with a broad white stripe along midvein, ovate-elliptic to ovate-lanceolate, 3-11 × 1.5-3.5 cm, apex acute or acuminate; petiole-like base and tubular sheath 1.5-4 cm. Peduncle 10-22 cm, with 1-3 pale red sterile bracts, sometimes densely villous; rachis 2-6 cm, laxly 5-16-flowered; floral bracts pale red, ovate to ovate-lanceolate, 5-10 × ca. 2.5 mm, shorter than to equal to ovary, margin ciliate, apex acuminate. Flowers spreading, obliquely resupinate, medium-sized; ovary and pedicel 8-11 mm, purplish green, glabrous to sparsely pubescent. Sepals pale red, glabrous, 1-veined; dorsal sepal erect, broadly ovate, cymbiform, 5.5-7 × 2.5-3.2 mm, apex acute to acuminate; lateral sepals spreading, broadly ovate, slightly oblique, 5.8-7.5 × 3-4 mm, apex acuminate. Petals white suffused with pink, broadly subovate, sides extremely unequal, 5.5-7 × 3.5-4 mm, apex apiculate; lip white, T-shaped, 6-7 mm, 3-partite; hypochile saccate, 3-3.5 × 3.2-4 mm, apex truncate or emarginate, containing 2 subglobose calli near base; basal calli shortly stalked, crenulate at apex; carina undulate, forming a fleshy bicarinate callus midway along hypochile; mesochile linear, 1-1.8 mm, slender; epichile transversely dilated, ca. 6 mm wide, 2-lobed; lobes diverging ± at right angles to lip axis, obovate, 2-3 × 1.2-1.8 mm, apex irregularly denticulate; disk irregularly papillose. Column 2.5-3.5 mm. Fl. Aug-Oct.
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