Plants 30-50 cm tall. Tuberoids elongate fusiform or clavate fusiform, 3-7 cm long, 4-8 mm thick. Stem many-ridged, with one or two cauline leaves and few bract-like smaller leaves. Leaves sessile, oblong to lanceolate, 5-12 cm long, 2-3 cm wide, apex acute, embracing stem at base. Inflorescence 515 cm long, 5-15-flowered; bracts ovate-lanceolate, 8-20 mm long, 4-8 mm wide, acute or acuminate, lower ones larger, shorter or equal to pedicel and ovary. Flowers somewhat nodding, greenish; dorsal sepal concave, broadly ovate, 5-6 mm long, 4.5-5.5 mm wide, apex obtuse, 3-nerved; lateral sepals reflexed, obliquely oblong-lanceolate, 7-9 mm long, 3-3.5 mm wide, acute or obtuse at apex, slightly contracted at base, 3-nerved; petals spreading, pointing away from dorsal sepal, obliquely ovate-lan-ceolate, 6-9 mm long, 3-4 mm wide, acute or obtuse; lip fleshy, descending, linear-lanceolate, 8-10 mm long, 2-2.5 mm wide, apex obtuse, spur cylindrical, arched or slightly pointing backward, 8-15 mm long, obtuse or sharp at tip; column 3-4 mm tall; anther cells clavate, 2.5 mm long, widely separated, staminodes elongate ellipsoid, 1.5 mm long; pollinia ovoid-ellipsoid, 1.5 mm long, caudicle ca. 1 mm long, viscidium orbicular discoid; stigmatic surfaces flat and confluent, concave cavity under rostellum; rostellum narrow tape-like, slightly curving into V shape.

ILAN: Nanhutashan, Su 7177*; Su 7258. HSINCHU: Litung, Kawakami s. n. Jul 1913. TAICHUNG: Hsuehshan, Su 7939; Su 7942. MIAOLI: Tapachien, Lin 372. HUALIEN: Pilushan, Su 9380. NANTOU: Hohuan, Su 8412. Meifong, Su et al. 9544.

Endemic. Alpine grasslands, 2,000-3,200 m.