Leaf 80–150 × 5–11 mm, usually held on or close to ground. Flower stem 100–350 mm tall, 1-or 2-flowered. Flowers 45–65 mm across, white, sometimes with faint red lines; sepals and petals with short, brown to blackish, thread-like tips (sepals sometimes developed into thin, imperfect, blackish clubs 8–12 mm long); petals lacking clubs. Dorsal sepal erect, 30–40 × 2.5–3 mm. Lateral sepals stiffly spreading to decurved, 30–40 × 4.5–6 mm, divergent. Petals similarly arranged, 25–35 × 2–3 mm. Labellum 13–16 × 7–11 mm, white; margins with numerous white teeth to 3 mm long; tip recurved. Basal calli 6–8, c. 1 mm long, erect, white. Lamina calli to 2 mm long, white or purplish, in 4 rows almost to labellum apex. Column 11–13 × 5–6 mm, translucent with reddish markings: basal glands c. 0.7 mm long, ovoid, yellow.
Known from few sites and rare; growing among forbs and grasses in shrubby woodland; the type locality is relict sheoak woodland invaded by exotic grasses and other weeds in freely draining, red, sandy loam.
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