Plants 25-34 cm tall. Rhizome short or inconspicuous. Pseudobulbs ovoid-conic, 1-2 × ca. 1 cm. Leaves 4, well developed and spreading at anthesis, not deciduous; blade elliptic, 12-22 × 4-7.5 cm, both surfaces densely pubescent, apex acute; petiole-like base 3-7 cm. Scape arising from leaf axil, erect, to 34 cm, densely puberulent; rachis 2-3 cm, laxly ca. 10-flowered; floral bracts persistent, green, ovate-lanceolate, ca. 15 mm, abaxially densely puberulent. Flowers purplish red; pedicel with ovary ca. 20 mm, densely puberulent. Sepals similar, elliptic, ca. 18 × 8 mm, abaxially densely puberulent, 3-or 4-veined, apex acute. Petals elliptic, ca. 13 × 7 mm, abaxially sparsely puberulent near apex, 3-or 4-veined, apex acute; lip adnate to entire length of column wings, 8-9 mm, 3-lobed; lateral lobes suborbicular or square, ca. 2.2 × 2.1 mm; mid-lobe flabellate, ca. 9 mm wide, base cuneate, apex slightly emarginate; disk with 4 brown spots, base with 3 yellow wartlike calli; spur narrowly clavate, ca. 25 mm, outside sparsely puberulent. Column thick, ca. 5 × 4 mm, wings sparsely puberulent; rostellum 2-lobed; anther cap narrow, beaked. Fl. Jul-Aug.
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