Plants 350–60 tall. Free part of leaf to 200 x 5–7mm. Spike 60–12 long, 10–30-flowered. Ovary sessile, green. Flowers moderately crowded, strongly scented, 14–16 x 7–9mm, bright green or yellowish-green to brownish-green, labellum whitish, callus green. Dorsal sepal 7–10 x 3–4mm, recurved. Lateral sepals free, 8–10 x 1.5–2mm, erect, nearly parallel. Petals 7–9 x 1mm, porrect, pointed. Labellum shortly stalked, 6–8 x 3–4mm, sharply recurved near middle, base broad then contracted and tapered, distal margins slightly crinkled. Callus green, narrow, flat, extending nearly to labellum apex.