Plants epiphytic or lithophytic, autotrophic. Pseudobulbs subovoid, bilaterally flattened, 4–9 × 2–3 cm, enclosed in persistent leaf bases. 

Leaves 6–16, distichous, lorate, 45–80 × 1– 1.7(–2) cm, articulate 4–10 cm from base, apex acuminate or obtuse and usually slightly 2-lobed. 

Inflorescence arising from lower part of pseudobulb, usually arching, 40–50 cm; rachis pendulous or nodding, centrifugal or centripetal, densely 18– 35-flowered; floral bracts small, 2–3 mm. Flowers slightly fragrant, pendulous, narrowly bell-shaped, not opening widely; pedicel and ovary 12–21 mm; sepals and petals cream-yellow to pale yellowish green, sometimes tinged pale pink; lip creamyellow to pale yellowish green, occasionally with reddish spots, lamellae bright orange. Sepals narrowly obovate-lanceolate, 34– 43 × 7–11 mm, apex acute. Petals broadly linear-oblanceolate, 30–40 × 5–8 mm, apex obtuse; lip oblanceolate-triangular, 30– 40 × 4–8 mm, base fused to basal margins of column for 2–3 mm, 3-lobed; lateral lobes loosely clasping column, not ciliate; mid-lobe small, 6–10 × 5–8 mm, margin slightly undulate, apex slightly bilobed and incurved; disk minutely papillate on lateral lobes and densely pubescent at center of mid-lobe, with 2 longitudinal lamellae extending from base of lip to near base of midlobe; lamellae sparsely pubescent, convergent at their apices and with a longitudinal channel between them, sometimes each lamella with a lanceolate appendage 3–5 mm on outside below middle. Column 28–32 mm, puberulent toward base, narrowly winged; pollinia 2, subclavate-obovoid.