Plants 8-13 cm tall. Tubers oblong, ca. 1 cm × 5 mm, fleshy. Stem erect or ascending, slender, pubescent, with 2 nearly opposite leaves near middle. Leaf blade orbicular, 1.5-2 × 1.4-1.7 cm, adaxially with yellowish white venation, densely finely papillate, base narrowed and amplexicaul-sheathing, margin white ciliate, apex acute. Raceme 4-14-flowered; rachis pubescent; floral bracts lanceolate, much shorter than ovary, apex acuminate; ovary twisted, terete, pubescent, including pedicel ca. 7 mm. Flowers green, small. Dorsal sepal erect, broadly ovate, ca. 3.5 × 3 mm, glabrous, 1-veined, apex obtuse-rounded; lateral sepals reflexed, obliquely ovate-elliptic, ca. 4 × 2.5 mm, glabrous, 1-veined, apex subobtuse. Petals erect, obliquely falcate-ovate, ca. 3.5 × 2.3 mm, glabrous, 1-veined, unlobed; lip spurred at base, above base 3-lobed; lateral lobes filiform, 6-7 mm, much longer than mid-lobe; mid-lobe linear-ligulate, ca. 2 mm, apex subacute; spur pendulous, clavate, ca. 4 mm. Fl. Aug.
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