Herbs, terrestrial. Pseudobulbs clustered, ovoid, ca. 10 × 6-8 mm, ± enclosed by white membranous sheaths. Leaf 1; petiole sheathlike, 4.5-12 cm, amplexicaul, not articulate; blade oblong or elliptic-oblong, 8-15 × 2-5 cm, membranous or herbaceous, base subcuneate and decurrent into petiole, apex obtuse or subacute. Inflorescence 12-22 cm; peduncle somewhat compressed, narrowly winged on either side; rachis 3-12 cm, several to 20-flowered, winged, wings along rachis nearly as wide as rachis itself when dried; floral bracts lanceolate, 6-9 mm. Flowers purplish red, slightly spaced; pedicel and ovary 1-1.6 cm. Sepals linear-lanceolate, 10-13 × ca. 3 mm, 3-veined, midvein rather conspicuous, margin revolute, apex subacute. Petals filiform or narrowly linear, 10-12 × ca. 0.7 mm, 1-veined; lip subquadrate or broadly oblong, ca. 10 × 8-9 mm, base slightly contracted, with a deeply colored central longitudinal band, without a callus, margin minutely ciliate, apex subtruncate and mucronate. Column slightly curved, 4-5 mm, upper part winged, base with 2 callus-shaped projections; anther cap beaked. Fl. Jul. 2n = 20.
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