Flower stem 0.2–1.3 m tall, pale brown, fleshy, erect in bud, 10–50-flowered. Flowers tubular, strongly bulbous at base, held obliquely erect, 12–14 mm long, externally white, sparsely warty, ageing brownish, internally white, lightly fragrant. Petals erect, margins folded inwards. Labellum 12.5–14 × 7–8 mm, white, 3-lobed; lateral lobes warty, with thickened margins; midlobe broad, with broadly rounded margins and folded, crinkled towards apex. Callus of 2 pimply ridges, without pseudopollen. Column 9.5–11 × 4 mm, sparsely wrinkled; anther cap smooth. Capsules 12–14 × 6–8 mm, urn-shaped.
Widespread but disjunct; growing among grass and shrubs near ridges, sheltered slopes and flats in tall, open forest dominated by flooded gum, swamp mahogany and forest oak in freely draining, gravelly loam and sandy loam.
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