Pseudobulbs erect, cylindrical, 20-60 cm long, 5-15 mm thick, lower part by 3-4 4-6 cm long cylindrical sheath, upper alternate 3-6 leaves, with most nodes ; internode length 2 ~ 10cm.

The leaf is elliptic or obovate lanceolate, 10 ~ 30 cm long, 3 ~ 9 cm wide. The apex is acute or acuminate, the base is constricted into a sheath of a stalk, and the edge is wavy. Leaf sheaths interlace with each other to form pseudostems.

Inflorescences lateral to middle node of stem or leaf axil above middle, ca. 30 cm long, with 2 scaly sheaths 2-4 cm long, glabrous ; inflorescence axis slender, many twists and turns, about 9cm long, sparse few flowers ; bracts oblong lanceolate, concave, glabrous, early fall ; flowers not very open ; the sepals are similar, oblong, ivory white, 3.5 ~ 4 cm long, 5 ~ 10 mm wide, slightly blunt apex, 5 veins, glabrous. Petals lanceolate or oblanceolate, 3-3.5 cm long, 3-5 mm wide near apex, obtuse apex, with 1 main vein and a few lateral veins, glabrous ; lip valve densely reddish brown spots, attached to the base of the pistil column, outline obovate triangle, approximately equal to the sepal, 3-lobed ; lateral lobes erect, embracing calyx column, apex obtuse or rounded ; middle lobe nearly square or wide obovate, apex slightly concave and with a short tip, edge wavy ; lip disc with 3 ~ 4 ridges, no hair on the ridge, ridge on both sides with sparse white long hairs, from the thin cylindrical, white or yellow, 1 ~ 1.6cm long, about 2mm thick, blunt end, slightly curved below the middle ; stamens slender, 2.2 cm long, upper part enlarged, both sides of the base densely covered with long hairs. Stamen beak triangular, uncracked, about 1.5 mm long, apex obtuse ; front end of medicine cap narrow, beak shape, above sparsely covered with short hair ; pollen masses broadly obovate, ca. 1. 5 mm long. 

Flowering November to January.