Description from Flora of China
Monorchis coiloglossa (Schlechter) O. Schwarz.
Plants 8-30 cm tall. Tubers ovoid to ovoid-oblong, 5-20 × 3-10 mm. Stem with 2 tubular sheaths at base, 1-leaved. Leaf basal, arising from within basal sheaths, linear to linear-oblong, 4-12 × 0.4-0.8 cm, apex acute. Inflorescence 7-27 cm; peduncle cylindric, with 2-7 lanceolate sterile bracts 0.2-0.8 cm; rachis 2-11 cm, ± laxly several to subdensely many flowered; floral bracts ovate, 1.5-3 mm, much shorter than ovary, apex acute to acuminate. Flowers erect, yellowish green; ovary straight, 3-5 mm including pedicel. Dorsal sepal erect, ovate, concave, ca. 1.5 × 1-1.2 mm, 1-veined, apex obtuse; lateral sepals spreading, oblong-ovate, slightly oblique, 1.8-2 × 1-1.2 mm, 1-veined, apex obtuse. Petals forming a loose hood with dorsal sepal to spreading, oblong, slightly oblique, concave, ca. 1.2 × 0.8 mm, 1-veined, apex obtuse; lip horizontal to slightly pendulous, oblong, 1.8-2.4 × 0.8-1 mm, concave, contracted at middle, somewhat fleshy, base shallowly concave, apex shallowly 3-lobed; lateral lobes triangular-falcate, to ca. 0.3 mm, apex subacute; mid-lobe triangular, ca. 0.3 mm, slightly wider than lateral lobes, apex acute. Column ca. 1 mm; pollinia globose; viscidia ovoid. Fl. Aug-Sep.
● Forests, grassy slopes; 1600-2800 m. C, S, and W Yunnan.