Plants 13-20 cm tall. Tubers oblong, 1.5-2 × 0.8-1 cm, fleshy. Stem erect, slender, rigid, glabrous, base with 4 or 5 leaves, with 4 or 5 bractlike leaves above. Leaf blade linear, 5-10 × 0.4-0.6 cm, base amplexicaul, apex acuminate or acute. Raceme several to more than 10-flowered, 2-4 cm, glabrous; floral bracts ovate-lanceolate, ca. 4 mm, much shorter than ovary, apex long acuminate; ovary twisted, terete, slender, including pedicel ca. 1 cm. Flowers yellowish green, small, glabrous. Dorsal sepal forming a hood with petals, ovate, concave, ca. 2 × 1.3 mm, 3-veined, apex obtuse; lateral sepals reflexed, obliquely ovate-oblong, ca. 2.8 × 1.3 mm, 3-veined, apex obtuse. Petals obliquely ovate, ca. 2 × 1.1 mm, 1-veined, apex acute; lip ca. 3.2 mm, fleshy, near base deeply 3-lobed; lobes linear, apex obtuse; lateral lobes perpendicular to mid-lobe, often ca. 2 mm; mid-lobe ca. 3 mm; spur pendulous, cylindric, to 1.6 cm, much longer than ovary, slender; pollinia obovoid; caudicles short; stigmas clavate. Fl. Jun. 2n = 42, 44, 84.