Plants 5-15 cm tall. Tuberoids nearly globose, 5-10 mm across. Stem pale green, 1-1.5 mm in diam., glabrous, with 1-2 sheaths at base. Leaves usually solitary, rarely 2, nearly radical, ovate-lanceolate or narrowly oblong, 4-9 cm long, 1-3 cm wide, acute or obtuse at apex, decurrent at base. Peduncle 6-15 cm long; bracts green, ovate-lanceolate, 4-5 mm long, apex acuminate, entire; ovary pedicellate, 4-6 mm long, nearly straight, pedicle 1-2 mm long. Flowers 5-20, secund, perianth subspreading, rose-pur-ple; dorsal sepal ovate, concave, 2.5-3 mm long, 1.5-2 mm wide, apex obtuse, contracted at base, slightly keeled abaxially; lateral sepals obovate, strongly concave, slightly oblique, 3-3.5 mm long, 2- 2.5 mmwide, apex obtuse, contracted at base, distinctly keeled abaxially; petals covering column and connivent with dorsal sepal forming hood, obliquely elliptic, 2.5-3 mm long, 2-2.5 mm wide, apex obtuse, contracted at base; lip oblong or obovate, 4-4.5 mm long, 3-3.5 mm wide, base cuneate, 3-lobes, lateral lobes triangular or rectangular, 0.8-1 mm long, obtuse or truncate at apex, terminal lobe obovate-cuneate, 1.5-2 mm long, 1-1.5 mm wide, truncate, emarginate or bifid at apex, spur cylindrical, pointing downward, 2-3 mm long, 1 mm in diam., slightly attenuate, acute at apex; column 1-1.5 mm; anther locules clavate, 0.8-1 mm long; pollinia ovoid, 0.3-0.5 mm long; viscidium ovoid; stigma concave, 0.5-1 mm across, with 3 confluent surfaces, lateral surfaces more or less protruding and appearing transversely bilobed.

NANTOU: Meifeng, Chen 321*, Su 9541; Hohuanshan, Ying 4921.

China, Korea and Japan. Taiwan, grassy slopes and rock crevices, 2,500-3,000 m.