Plants 400–60 tall. Free part of leaf to 300 x 3–6mm. Spike 60–12 long, 15–35-flowered. Ovary shortly stalked, green. Flowers moderately crowded, widely opening, lightly scented, 10–12 x 6–8mm, greenish-brown, whitish or pink, labellum whitish to bright pink, callus green to yellowish. Dorsal sepal 6.5–8 x 3.5–4.5mm, decurved or recurved. Lateral sepals free, 7.5–9 x 2–2.5mm, nearly straight, nearly parallel. Petals 6–7 x 1.8mm, porrect, blunt. Labellum sessile, ovate-lanceolate, 5.5–6.5 x 4–4.5mm, tapered to apex, sharply recurved near middle, margins wavy/crinkled. Callus broad, raised, grooved, shiny, extending past labellum bend, apex raised, thick, grooved.