Plants up to 80 cm high. Pseudobulbs erect, terete, 30-80 cm long, 6-15 mm thick, lower part covered with 3-4 cylindrical sheaths 4-6 cm long, upper part alternated with 5-6 leaves, with most nodes ; the internode is 2-10 cm long. Leaves elliptic or obovate-lanceolate, 15-30 cm long ( 10 - ), 4-8 cm wide, apex acute, base contracted into stem sheath, margin somewhat undulate, dry to indigo ; leaf sheaths interlace with each other to form pseudostems.

Inflorescences arising from middle nodes of pseudobulb or axils of upper leaves above middle, ca. as tall as or taller than height of leaves, (30-)35-45 cm, sparsely 2-10-flowered, glabrous; floral bracts caducous, oblong-lanceolate, 3-4 cm, glabrous. Flowers not widely opening, 5-6 cm in diam.; pedicel and ovary 2-3 cm, glabrous; sepals and petals pale pink to dark red or purple-brown. Sepals similar, elliptic, 2.5-3.5 × 0.5-1.2 cm, glabrous, apex subacute. Petals oblanceolate, 2-3.5 × 0.4-0.7 cm, apex obtuse; lip white to pink, densely reddish brown spotted, obovate-triangular, 2-3.5 × 1.5-2.5 cm, 3-lobed; lateral lobes ovate, margins flat or slightly undulate, apex obtuse or rounded; mid-lobe subsquare or broadly obovate, margin undulate, apex emarginate to retuse; disk with 3 or 4 densely hirsute-pubescent ridges extending to mid-lobe; spur slightly curved, yellow-green, narrowly cylindric, 1-1.6 × ca. 0.2 cm, apex obtuse. Column yellow or whitish, ca. 2.2 cm, densely villous ventrally; rostellum triangular. Fl. Oct-Jan.