Plants terrestrial or lithophytic, autotrophic. Pseudobulbs subcylindric, 1.5-2.5 × ca. 1 cm, enclosed in leaf bases. Leaves 2-4, suberect, oblong-oblanceolate, 22-27 × 3.5-4.7 cm, leathery, with a prominent midvein, tapering into a petiole-like stalk at base, apex acute or obtuse; petiole-like stalk slender, 15-23 × 0.4-0.5 cm, channeled, articulate near middle. Inflorescence arising from base of pseudobulb, suberect or slightly arching, 36-50 cm, with several sheaths toward base; rachis 20-30 cm, 20-40-flowered; floral bracts ovate-lanceolate, 4-5 mm. Flowers purplish brown, ca. 3.5 cm in diam.; pedicel and ovary 15-20 mm. Sepals narrowly elliptic to ovate-lanceolate, 20-22 × 6-7 mm, apex acuminate. Petals narrowly elliptic-lanceolate, 16-19 × 5.5-6 mm, apex acuminate; lip slightly recurved, subrhombic or obovate-rhombic, 13-15 × ca. 10 mm, not fused to basal margins of column, unlobed or sometimes obscurely 3-lobed, apical margins slightly crisped; disk with 2 fleshy calli centrally. Column slightly arcuate, 10-12 mm. Fl. Mar-Apr. 2n = 40.
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