Plants 8-16 cm tall. Stem ascending, pale reddish brown, 2-6-leaved. Leaves abaxially pale purplish red, adaxially dark greenish purple with golden-red venation, broadly ovate to ovate-orbicular, 0.7-2.6 × 0.6-2.1 cm, margin slightly undulate, apex acute; petiole-like base and tubular sheath ca. 0.8 cm. Peduncle 5-10 cm, with 2 sterile bracts; rachis 1-4 cm, 1-4-flowered; floral bracts ovate-lanceolate, ca. 6.5 mm, subequal in length to ovary, outer surface pubescent, apex acuminate. Flowers erect, not resupinate; ovary and pedicel pale reddish brown, narrowly fusiform, not twisted, ca. 7 mm, white pubescent. Sepals pinkish red, outer surface pubescent; dorsal sepal ovate, cymbiform, ca. 5 × 3.5 mm, apex acute; lateral sepals spreading, oblong-obovate, slightly oblique, ca. 7 × 3 mm, apex obtuse. Petals white, oblanceolate, strongly oblique, ca. 6 × 2 mm, apex acute; lip white, Y-shaped, ca. 10 mm; hypochile ca. 2.5 mm; mesochile ca. 3 mm; flanges pectinate, composed of 2-5 narrow teeth, each tooth ca. 2 mm; epichile longitudinally dilated, 2-lobed; lobes diverging at an acute angle to one another, flabellate, slightly oblique, ca. 6 × 5 mm, entire, apex truncate; spur conic, slightly curved, ca. 5 mm, apex shallowly bilobed, containing 2 irregular, stalked calli near entrance. Column short. Fl. Jul-Sep.
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