Pseudobulbs clustered on a short rhizome, cylindric, 1.5-3.5 cm × 5-10 mm, 2-leaved. Leaf blade narrowly oblong or suboblanceolate-oblong, 5-16.5 × 1-2.5 cm, papery, acuminate; petiole 1-3 cm. Inflorescence subdensely 20-40-flowered; peduncle 7-14 cm, slender, glabrous; rachis 3.5-8 cm; floral bracts alternate, narrowly lanceolate, 6-14 mm, grooved, long acuminate. Flowers yellowish green or yellow; pedicel and ovary 3-4 mm, densely pubescent. Sepals connate into an urceolate tube, 3-5 mm, outer surface glabrous; free apical lobes ovate-triangular, ca. 1 mm; lateral sepals convex on one side; mentum saccate, short. Petals hidden in mentum, obovate-lanceolate, 3.5-4 × ca. 0.8 mm; lip subrhombic-cuneate, 3.5-4 × ca. 0.8 mm, base slightly curved, apex obtuse. Column short, thick, apex dilated, with a short foot. Capsule suboblong, 6-7 × 3-3.5 mm. Fl. Jun-Jul, fr. Sep-Oct.
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