Yarlung Zangbo–Brahmaputra Region. Kameng district, Bomdila, 2500 m, Rao A.N., 30600A (Holotype: TIPI!).

Plant 15–35 cm tall. Tubers ca. 1.5 × 0.5 cm. Stem up to 18 cm tall, slender, with about 2 tubular sheaths in the lower half, 23-leaved. Leaves linear-oblong or narrowly laceolate, acuminate, 27 × 1.5 cm, sheathing at base. Inflorescence 24 cm long; rachis about 6–12 cm long, many flowered. Flowers about 7 mm long, green, floral bracts 6–10 × 1.5–2 mm, ovate-lanceolate, acuminate, longer than ovary, pedicel and ovary 6–9 mm long. Dorsal sepal ovate, obtuse, 1.5–2.5 × 1–1.5 mm,; lateral sepals obliquely ovate, 2–3 × 1.4–2 mm, apex obtuse. Petals 2–3 × 0.7–1 mm, subfalcate, oblong-lanceolate, apex subacute. Lip broadly ovate, with a circular concavity at base; 4 × 3 mm, base dilated, 3-lobed above middle, lateral lobes oblong, 1.5 × 0.5 mm, midlobe 0.5 × 0.5 mm long, triangular; lateral lobes 1.5 mm long, narrowly oblong, divergent, projected forwards. Column about 1 mm long, with 2 staminodes. Pollinia sectile, obovoid, with minute viscidia, rostellum triangular, stigma transversely oblong situated below the rostellum. Fruit oblong, 6–10 mm long.

August–September.

Terrestrial in Quercus forest on moist slopes at elevations of 2200–2500 m.

China, India, Nepal.

Yarlung Zangbo–Brahmaputra Region: Kameng district, Bomdila (2500 m), Rao A.N., 30600AB (CAL). NEPAL: Koshi, Dhankutta District, between Sidhuwa and Chitrye, 2200 m, 19.08.2012, Raskoti B. B., 00357 (KATH).