Leaf linear lanceolate, 60–100 × 5–7 mm. Flower stem 120–200 mm tall, wiry, 1-flowered. Flowers 30–40 mm across, greenish cream with light red stripes; labellum greenish cream with a maroon apex or wholly dark red; calli dark red; column translucent with red markings; sepals with short, thick, dark red to blackish clubs 2–5 × 1 mm; petals lacking clubs. Dorsal sepal erect, 20–30 × 2–2.5 mm. Lateral sepals stiffly decurved, 25–30 × 3–3.5 mm, divergent. Petals spreading to stiffly decurved, 20–25 × 2–2.5 mm. Labellum stiffly hinged, 11–13 × 7–8 mm; margins with 4–8 pairs of purplish red teeth to 0.5 mm long; tip recurved. Basal calli 6–8, c. 1 mm long, often yellowish. Lamina calli to 1.5 mm long, in 4 rows. Column 11–13 × 4–5 mm, broadly winged; basal glands c. 1 mm long, globose, yellow with a red base.
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