Rhizome stout. Pseudobulbs 2-9 cm apart from each other, narrowly ovoid, 2-3.5 cm, with a terminal leaf. Petiole ca. 2 cm; leaf blade narrowly oblong, ca. 8 × 3 cm, leathery, base contracted into petiole, apex obtuse and slightly emarginate. Scape from base of pseudobulb, erect, 5-10 cm; umbel many flowered; peduncle ca. 1.2 mm in diam., sparsely with 3 tubular sheaths; floral bracts lanceolate, 3-5 mm, apex acute. Pedicel and ovary 4-7 mm. Flowers pale yellow, tinged with purple. Dorsal sepal ovate-oblong, cymbiform, ca. 7 × 4 mm, apex obtuse; lateral sepals narrowly oblong, ca. 1 cm, base adnate to column foot, twisted near base, with their upper edges connate in apical half. Petals narrowly oblong, ca. 3.5 × 1.5 mm, entire, acute; lip slightly recurved, narrowly lanceolate-cylindric, ca. 4 mm, fleshy, grooved at adaxial base, margin decurved, entire, apex subacute. Column ca. 2 mm, with suborbicular, enlarged wings at middle; foot ca. 3.5 mm, with free part upcurved; stelidia subulate, ca. 1 mm; anther cap with comblike teeth at apex. Fl. Aug.
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