Flowers to 16 mm long, including the pedicel and ovary, white, the sepals sometimes with a salmon-coloured streak down the centre; the spur salmon-coloured or brownish at the tip.
Roots numerous, up to 20 cm long, 1–2 mm in diameter, terete or slightly flattened, greenish-grey, fairly closely attached to the substrate and often forming low conical mounds.
Lip large, 5.8–7 × 4–5 mm, broadly ovate, apiculate, the margins undulate and erose; spur 6–7 mm long, usually incurved but sometimes almost straight, the apex usually inflated.
Inflorescences several, erect or spreading, up to 7 cm long, densely up to c. 20-flowered. Peduncle 10 mm long; bracts 1–1.6 mm long, sheathing, acute.
Dorsal sepal 5.5–7.3 × 1.5–2.2 mm oblong, acuminate; lateral sepals 6.4–8.4 × 1.2–1.9 mm, obliquely oblong, acuminate.
Pedicel to 2 mm long; ovary 1.2–2.3 mm long, curved and twisted, salmon-pink.
Petals 5–6.2 × 1.5–2 mm, lanceolate or ovate, apiculate, erose at apex.
Sepals with brownish or salmon-coloured central line
Scale leaves to 4 mm long, acute or acuminate.
Apex of spur orange or salmon-coloured.
Epiphytic herb, rarely lithophytic.
Column 1.7–2.5 mm long.
Stem to 4 cm long.
Flowers white