Leaves 30–40 × 14–18 mm. Flower stem 35–70 mm long. Flower 26–30 × 5–6 mm, bright green to reddish brown; calli dark green to blackish; column pale green with red spots. Dorsal sepal spathulate, erect and held away from column, 14–16 × 3–4 mm; apical club 4 mm long. Lateral sepals shallowly decurved below labellum, 16–18 × 0.8 mm, parallel; apical clubs thin, 5–7 mm long. Petals reflexed against ovary, 10–12 × 3–3.5 mm. Labellum obovate, held horizontally, shallowly curved, 9–11 × 5–6 mm, distal margins crenate. Callus covering most of labellum surface, main gland shaped like duck’s head. Column 8–9 × 3 mm, broadly winged, upper surface warty.
Highly localised; growing in small, sparse colonies under bracken near streams in tall forest and around small sandstone outcrops in freely draining, grey gravelly loam.
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