Rhizome short, stout, 8-10 mm in diam., with scaly sheaths. Pseudobulbs borne close together, narrowly ovoid, oblong, or subcylindric, 2.5-8 cm × 6-12 mm, apex 1-or 2-leaved. Leaf blade narrowly elliptic, narrowly elliptic-lanceolate, or oblong-lanceolate, 15-30 × 2-3.5 cm, apex acuminate; petiole 3.5-8 cm. Inflorescence arising from young pseudobulbs, with nearly mature leaf at anthesis, often ± pendulous, 13-25 cm or longer; sheaths 1.5-3 cm; rachis straight, laxly 12-35-flowered; floral bracts deciduous, elliptic or broadly ovate-rhombic, ± conduplicate, membranous. Flowers white and slightly tinged with pink, or yellowish brown, ca. 5 mm in diam., lip white, tinged with pale brown or with yellow blotches, stigma red; pedicel and ovary 3-4 mm. Sepals broadly ovate-elliptic, 5-7 × 3-6 mm, 7-veined, acute; lateral sepals dorsally carinate. Petals ovate-elliptic, 4-5 × 2.5-3 mm, 3-5-veined, obtuse; lip broadly oblong or subovate in outline, 5-6 × 3-3.5 mm, contracted into epichile and hypochile at apical 3/5; hypochile ca. 1 mm wide, shallowly cupular in center, margin spreading horizontally, with 3 or 4 thickened veins extending from base to above middle; epichile transversely oblong or elliptic, 4-5 mm wide, margin slightly undulate, apex emarginate. Column 2.2-3 mm, apex broadly winged. Capsule narrowly obovoid, ca. 2 cm × 5-6 mm; fruiting pedicel 2-3 mm. Fl. May, Dec.
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