Description from Flora of China
Kryptostoma intermedium (D. Don) Olszewski & Szlachetko; Ochyrorchis intermedia (D. Don) Szlachetko.
Plants turning black when dried, 23-30 cm tall. Tubers ellipsoid, 1.5-3 × 1-2 cm, fleshy. Stem erect, terete, stout, with 3-5 laxly arranged leaves. Leaf blade ovate-lanceolate, 3.5-8 × 2-4 cm, base amplexicaul, apex acute. Raceme 1-4-flowered, 6-15 cm; floral bracts ovate, 4-5 cm, nearly as long as ovary, apex acuminate; ovary twisted, terete, including pedicel 3.8-4.5 cm. Flowers white or greenish. Sepals ciliate; dorsal sepal erect, ovate-oblong, concave, ca. 2.2 × 1.2 cm, 7-veined, apex acute; lateral sepals reflexed, obliquely falcate-lanceolate, ca. 3 × 0.6 cm, 7-veined, apex acute. Petals forming a hood with dorsal sepal, erect, white, obliquely subovate-falcate, ca. 2.2 × 0.8 cm, 5-veined, margin ciliate, unlobed, apex acute; lip 2.8-3 cm, base spurred, deeply 3-lobed above base, lobes ciliate; lateral lobes linear, outer margin with 10 filiform lobules; mid-lobe linear, 18-20 mm, slightly shorter than lateral lobes, apex acute; spur pendulous, cylindric, 7-8.5 cm, much longer than ovary, slightly dilated near end, apex obtuse; connective ca. 2 mm wide; pollinia ovoid; caudicles linear; viscidia orbicular, small; rostellum with elongate arms; stigmas clavate. Fl. Jul. 2n = 42.
Forests; 2600-3000 m. S Xizang [India, Kashmir, Nepal].