Terrestrial herb 18–30 cm tall; tubers c. 15 × 10 mm, ovoid or ellipsoid, villous.Basal leaf 1, appressed to ground, 2.5–4 × 2.5–3.5 cm, broadly ovate, apiculate, cordate at base, dark green mottled with white, glabrous or with a few scattered hairs on upper surface, ciliate on edge.Stem light green with 3–4 bract-like leaves c. 10 mm long.Stem, sheaths, ovary, bracts and sepals all pubescent.Inflorescence 3.5–7.5 × 2–3 cm, fairly densely 3–11-flowered; bracts 6–7 mm long, lanceolate, acuminate.Flowers non-resupinate, primrose-yellow.Ovary and pedicel 10 mm long.Dorsal sepal 6.5–8 × c. 4 mm, ovate, convex, ± at right angles to ovary; lateral sepals of similar length but 2.5–3.5 mm wide, obliquely lanceolate.Petals 2-lobed in apical third, 7–9 × c. 3.5 mm; posterior lobe (the one nearest intermediate sepal) 3.5 × 2.5–3 mm; anterior lobe 2–2.5 × 1 mm.Lip 8–10 mm long, 3-lobed about halfway, the lobes diverging slightly, the apices rounded; mid-lobe 4–5.5 × 1.5–2 mm; side lobes 3.5–4.5 × 0.6–1 mm; spur 10.5–12 mm long, bent up so that it lies parallel to the flower but above it, slightly swollen towards the end but with an acute apex.Anther c. 2.5 mm high; canals c. 1 mm long.Stigmatic arms c. 1.5 mm long.
