Leaf 150–300 mm long; free part 15–25 mm long, ending well below flowers. Spike 20–40 mm long, 3–15-flowered. Flowers widely spaced, porrect, 4–5.5 mm long, opening erratically or often remaining closed, yellowish green with reddish labellum. Dorsal sepal 5 × 2.5 mm; margins hairy. Lateral sepals parallel to divergent, 6.5 × 2 mm; base humped; tips with or without a vestigial gland. Petals 4 × 1.5 mm, sharply pointed; margins hairy. Labellum stiffly hinged, 7.5 × 2 mm, variously shaped, thin-textured; margins with pink to red hairs; apex sharply pointed. Callus extending nearly to labellum apex.
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