Plants turning black when dried. Rhizome flexuous, short, sparsely pubescent; pseudobulbs contiguous, cylindric, 2-2.5 cm × 2-3 mm, with longitudinal stripes, apex 2-leaved. 

 Leaf blade oblong-oblanceolate, 9.5-13.8 × 0.8-1.8 cm, nearly leathery when dried, usually with 9 main veins, subacute. 

Inflorescence terminal, 15-19 cm, laxly 9- or 10-flowered; floral bracts lanceolate, 3-4(-7) mm. Flowers glabrous. Dorsal sepal lanceolate-oblong, ca. 8 × 2 mm, shortly acuminate; lateral sepals subovate, 6-7 × 2-2.5 mm, subacute. Petals slightly curved, narrowly oblong, ca. 6 × 1.5 mm, subacute; lip obovate-cuneate in outline, ca. 9 × 5-6 mm, with a basal claw 4-4.5 mm, distally 3-lobed; lateral lobes subovate, broadly obtuse; mid-lobe suborbicular, ca. 1.5 × 3 mm, margin irregularly crenate or undulate, apex mucronate; disk with a central, suborbicular lamella ca. 0.7 mm tall in basal half and 6 or 7 irregularly fimbriate lamellae above. Column ca. 1.5 mm (not including anther cap).

Capsule oblong-ellipsoid, ca. 1 cm × 5-6 mm; fruiting pedicel 5-6 mm. Fl. unknown, fr. Oct.