Plants single or in tufts. Leaves 3–7, 50–100 × 1–2 mm, straight. Flower stem 60–200 mm, 1–3-flowered. Flowers often not opening widely, semi-nodding, 15–20 mm across, golden to orange yellow, with dark internal streaks. Dorsal sepal obliquely erect, 7–12 × 6–8 mm. Lateral sepals obliquely deflexed below labellum, 10–16 × 1.5–2.5 mm. Petals nearly horizontal or drooping; stalk 3–4 mm long, green; blade ovate, 6–10 × 3.5–6 mm. Labellum 10–15 mm long; lateral lobes 2–3 × 1.5–2 mm, papillate, toothed; midlobe broadly ovate, 7–10 × 7–11 mm. Callus ridges 2, 6–8 mm long, densely papillate, orange.
Once locally common, now highly localised and very rare. It grew on grassy plains dominated by kangaroo grass (Themeda triandra) and forbs, on the banks of streams and gullies which bisect the plains, and also on gently sloping sites among scattered, small basalt boulders in heavy, red-brown to blackish loam.
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