Plants 400–80 tall. Free part of leaf to 200 x 6–10mm. Spike 50–15 long, 10–50-flowered. Ovary stalked, pale green. Flowers moderately crowded, scented, 16–20 x 8–10mm, pale green with pink, lilac or purplish markings, labellum white, pink or purple, callus green. Dorsal sepal 9–15 x 3–4mm, decurved, with long apical point. Lateral sepals basally fused, each sepal 10–15 x 2–2.5mm, parallel or divergent. Petals 8–12 x 2–2.5mm, porrect to spreading, margins irregular. Labellum shortly stalked, broadly obovate-lanceolate, 7–9 x 4–5mm, sharply recurved near middle, distal margins weakly wavy/crinkled. Callus raised, fleshy, minutely wrinkled, extending nearly to labellum apex.
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