Leaf lanceolate, 70–120 × 8–12 mm, hairy. Flower stem 200–400 mm tall, hairy, 1-or 2-flowered. Flowers 60–80 mm across, smell like burnt plastic, pale greenish yellow to white, often with a red to maroon labellum; sepals and petals with moderately thick, reddish, densely glandular tips (usually no clubs, sepals sometimes with thin, poorly developed clubs). Dorsal sepal erect, 40–55 × 2–3 mm, incurved. Lateral sepals spreading to stiffly decurved, 40–55 × 4–5 mm, divergent. Petals similarly arranged, 35–40 × 2–2.5 mm. Labellum 12–15 × 9–11 mm, usually red with a paler base, sometimes wholly yellowish; margins with numerous red, linear teeth to 2.5 mm long; tip recurved. Basal calli 4–6, c. 1.5 mm long. Lamina calli to 1.2 mm long, red, in 4 or 6 rows onto base of midlobe (central row can extend nearly to apex). Column 11–13 × 5–6 mm, translucent with reddish markings; basal glands c. 1.5 mm long, ovoid with a red basal stalk.
Relatively widespread, but localised, in hilly country; growing among shrubs on slopes and ridges in tall forest, shrubby open forest, and heathy forest in freely draining clay loam and well-structured loam.
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