Plants usually consisting of a single, stiffly projecting growth with numerous broad, flat, grey, raspy roots 4–6 mm across. Leaves 2–6, 80–150 × 25–30 mm, thin-textured but stiff, dark green, almost parchment-like, margins wavy, finely toothed when young, tips often curled. Racemes pendulous, 200–300 mm long, stiff, 10–60-flowered. Flowers lasting 1–2 days, opening in sporadic groups, 40–50 × 40–50 mm, yellow to orange with red blotches and a white labellum. Sepals and petals widely spreading, narrow, pointed. Dorsal sepal 35–50 × 2 mm. Lateral sepals 35–50 × 2 mm. Petals 30–45 × 2 mm. Labellum hinged, c. 4 × 3 mm; lateral lobes c. 3.5 × 2.5 mm, erect, with numerous irregular red stripes; lateral lobes erect, overlapping at apex; midlobe short, blunt; spur short, blunt.
Widespread and common in various habitats from the coast to high in the mountains and tablelands; found growing on trunks and branches of trees on slopes in drier types of rainforest, gorges, gullies and moist, humid areas in open forest, occasionally on rocks, often in quite dark situations. Confined to ranges and tablelands in the tropics.
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