Leaves 2–4, up to 8 × 3 cm, obovate, unequally 2-lobed at the apex with acute lobes; the lamina dark green with a conspicuous reticulate venation, slightly fleshy.
Dorsal sepal erect or arching over column, 5–8 × 2–4 mm, elliptic or obovate, obtuse; lateral sepals similar but slightly narrower, reflexed or spreading.
Epiphytic herb, occasionally lithophytic; stem short; roots numerous, 2–5 mm in diameter, radiating across the bark of the host tree.
Column 1.5–2 mm long; rostellum very elongated, at first directed towards mouth of spur but porrect when the viscidium is removed.
Inflorescences pendent, 8–14 cm long, 1–10-flowered. Peduncle short, with 1 or 2 sheaths; rhachis slightly zigzag.
Flowers white, the pedicel and spur sometimes tinged with pink.
Lip (4.5)7–8 × 2.8–4.5 mm; spur slender, 4–6 cm long.
Bracts loose, 3–5 mm long, ovate, obtuse.
Capsules c. 15 × 6 mm, ellipsoid.
Pedicel and ovary 11–14 mm long.
Petals similar to sepals.