Description from
Flora of China
Plants 28-30 cm tall. Rootstock tuberous, narrowly ellipsoid, 1.5-1.7 × 0.4-0.5 cm. Stem erect, stout, with 2 or 3 tubular sheaths at base, 3-leaved. Leaves cauline, spatulate, 13-19 × 2.8-5.3 cm, base attenuate and sheathing, apex acute. Peduncle with 1 or 2 lanceolate bracts; rachis 5-8 cm, laxly 9-12-flowered; floral bracts lanceolate, 12-13 mm, exceeding ovary, apex acuminate. Flowers yellowish green; pedicel and ovary cylindric-fusiform, 12-13 mm. Dorsal sepal erect, not connivent with petals, cymbiform, cordate-ovate, ca. 5 × 5 mm, glabrous, 7-veined, apex obtuse; lateral sepals spreading, ovate-lanceolate, oblique, ca. 7.5 × 3.5 mm, glabrous, 3(-5)-veined. Petals erect, linear-lanceolate, oblique, ca. 6 × 1.5 mm, slightly fleshy, apex obtuse; lip pendulous, linear, ca. 10 × 1 mm, entire, apex obtuse; spur pendulous, cylindric-clavate, 20-21 × ca. 1 mm, slightly dilated toward apex, apex obtuse. Fl. Jul.
● Forests on slopes; 2800-3000 m. NW Yunnan (Lijiang, Weixi).