Rhizome stout, rigid, with scaly sheaths. Pseudobulbs contiguous, yellowish brown and strongly wrinkled when dried, lucid, oblong-ellipsoid, 1.5-3 × 1-1.5 cm, deeply sulcate, sheathing at base, with 2 leaves at apex. Leaf blade narrowly elliptic, ca. 7 × 1.5 cm, leathery, base attenuate into petiole ca. 2 cm, apex acuminate. Inflorescence proteranthous, ca. 6 cm, lower part enclosed in leathery sheaths; rachis 2-or 3-flowered; floral bracts caducous; pedicel and ovary ca. 16 mm. Flowers white or slightly tinged yellowish, lip with 2 eyelike colored blotches. Sepals oblong, 17-19 × 4-5 mm, apex acuminate. Petals nearly broadly linear or narrowly oblong, ca. 15 × 2-3 mm; lip ovate, ca. 15 × 10 mm, 3-lobed; lateral lobes erect, subobovate; mid-lobe nearly elliptic, ca. 5 × 4 mm, with 3 longitudinal inconspicuous lamellae extending from base of lip, lateral lamellae thick, median lamella inconspicuous. Column slightly arcuate, ca. 12 mm, both sides winged; wings widened from base to apex, upper side ca. 1 mm wide on one side. Fl. Mar. 2n = 40.
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