Herbs, terrestrial, rarely epiphytic. Pseudobulbs clustered, ovoid to globose, 5-12 × 3-8 mm, enclosed by 2 or 3 membranous sheaths. Leaves 2; petiole 1.5-8 cm, base sheathing, not articulate; blade ovate or ovate-oblong to subelliptic, (2-)5-10(-16) × (1-)2-4(-7) cm, base contracted into petiole, margin entire, occasionally wavy, apex acute to obtuse. Inflorescence 10-25 cm; peduncle 3.5-15 cm, winged; rachis 2-17 cm, laxly to subdensely few to many flowered; floral bracts lanceolate, 1-5.5 mm, apex acute. Flowers greenish, often tinted pink to purple or light purple; pedicel and ovary 5-10 mm. Dorsal sepal ligulate-lanceolate, 5-9 × 1.8-2 mm, 3-veined, apex subacute; lateral sepals parallel below lip, obliquely oblong-lanceolate, 4.5-8.5 × 1.5-2 mm, 3-veined, apex subacute. Petals deflexed, parallel to and below lateral sepals, linear, 5-7 × ca. 0.5 mm; lip cuneate to oblong-obovate, 5-6 × 3-3.5 mm, base contracted, without a callus, margin entire to irregularly suberose, apex broadly apiculate, truncate to emarginate. Column weakly curved, 2.5-3.5 mm, base dilated, apex with small subquadrate wings. Fl. Aug-Oct.
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