Plants terrestrial, autotrophic. Pseudobulbs narrowly ovoid, 1-1.5 × 0.6-0.8 cm, enclosed in leaf bases. Leaves 1-4, suberect, lorate or linear-lanceolate, 7-22 × 0.5-0.8 cm, leathery, articulate toward base, apex acuminate. Inflorescence lateral, suberect, 8-10 cm, slender; peduncle with many sheaths; sheaths greenish, with brownish red venation, 1.5-1.8 cm; rachis slightly zigzag, 2-2.5 cm, 2-or 3-flowered; floral bracts green, with purple-red venation, lanceolate, 4-5 mm. Flowers rather small, 2-3 cm in diam.; pedicel and ovary 10-15 mm, greenish, with purple-red stripes; sepals purple-brown with deeper-colored venation; petals pale yellow-green with purple-red venation; lip yellowish white, mottled with purplish red. Sepals narrowly elliptic-oblong, 15-17 × 3-4 mm, apex acute and incurved; lateral sepals oblique. Petals narrowly elliptic, 13-15 × 6-7 mm, loosely embracing column, apex acute; lip subovate, 13-15 × 11-12 mm, not fused to basal margins of column, obscurely 3-lobed, apical margins slightly crisped, apex obtuse and incurved; disk with 2 fleshy lamellae ca. 6 mm. Column slightly arcuate, 10-12 mm; pollinia 4, in 2 pairs. Fl. Dec.