Rhizome creeping, 3-4 mm in diam. Pseudobulbs 1-3.5 cm apart on rhizome, ovoid-conic, cylindric to obpyriform, 2-3.5 cm, 10-15 mm in diam.,

with a terminal leaf. Petiole 1.4-4 cm; leaf blade elliptic to oblong to obovate, 9-16 × 2-3.1 cm, apex obtuse.

Scape from base of pseudobulb, 21-40 cm; raceme to 5.5 cm, laxly 4-8-flowered; peduncle 15-35 cm, slender, with 6 scalelike sheaths; floral bracts 1.9-2.5 mm. Pedicel and ovary 10-15 mm. Flowers (off-)white with purple veins, lip purple. Dorsal sepal lanceolate, 12-24 × 3-5 mm, margin glabrous, apex acuminate; lateral sepals similar, 14-26 × 6-8 mm, with their lower edges connate except near apex, apex acuminate. Petals broadly ovate, 4-5 × 1-1.5 mm, margins entire to erose, apex obtuse; lip lanceolate, 1.5-2 × 0.35-0.7 mm, adaxially with 2 lamellae starting as thick knobs near base, then lower and diverging. Column stout, 2-3 × 1.1-1.3 mm; foot short, attenuate, anther cap in front with 2 distinct projections. Fl. Oct-Dec.