Herbs, terrestrial. Pseudobulbs clustered, ovoid, 1.8-3 × 1.5-2.5 cm, enclosed by 2 or 3 membranous sheaths. Leaves 2; petiole 5-9 cm, base sheathing, not articulate; blade ovate to oblong, 6-13 × 4-6 cm, base contracted into petiole, apex obtuse. Inflorescence 23-40 cm; peduncle 5-20 cm, 3-ridged; rachis 18-20 cm, laxly 10-20-flowered; floral bracts triangular, 2-3 mm, apex acute. Flowers widely opening, pale green, center of lip often tinged purple; pedicel and ovary ca. 15 mm. Dorsal sepal reflexed, linear, 10-12 × 2.5-3 mm, keeled dorsally, 3-veined, margin revolute, apex obtuse; lateral sepals obliquely ligulate-lanceolate, 10-12 × 3-3.5 mm, parallel below lip, keeled dorsally, 3-veined, margin revolute, apex acute. Petals linear, 10-12 × ca. 1 mm, margins revolute, deflexed lower than lateral sepals but upcurved from middle; lip recurved abruptly at middle, cuneate-obovate, 10-12 × 7-10 mm, base contracted and without a callus, margin entire to indistinctly serrulate, apex truncate-rounded, minutely apiculate. Column curved, 5-6 mm, base dilated into 2 rounded mounds, apex with obtuse wings. Fl. Jun-Jul.
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