Leaf 150–250 × 3–4 mm. Inflorescence 150–300 mm long, 5–35-flowered. Flowers 4–5 × 4–5 mm, white with prominent green patch on labellum base, drooping with age and quickly becoming brownish after picking. Dorsal sepal obliquely erect, c. 3 × 3 mm, shallowly concave, apex with short mucro. Lateral sepals widely divergent, ovate-lanceolate, c. 3 × 1.2 mm, tapered to a blunt point. Petals divergent, narrowly elliptical, c. 2.5 × 1 mm, obliquely erect. Labellum recurved, flat, oblong-obovate, 3–3.5 × 4–4.5 mm, constricted near middle, widening towards apex, margins flat or shortly toothed, apex entire or shallowly notched. Basal callus of 2 raised, dark green mounds more or less joined together; apical callus absent or very small.
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