Dorsal sepal 9–10.5 mm long from apex to top of spur and 5–6 mm long from top of spur to apex of ovary, adnate to petals to form a fairly slender spur 3–4 mm long.
Leaves 2 (1 or absent in subsp. aphylla), opposite or subopposite, purple on the undersurface, 2–3 × 1.5–2.5 cm, ovate; margins undulate.
Terrestrial herb 6–16 cm tall, the stem greenish-white with purple streaks; tubers 10–20 × 5–10 mm, ovoid or globose.
Lateral sepals free, 7–9 × 2–3 mm, obliquely ovate, slightly curved, each with a sac-like spur c. 1.5 mm long.
Inflorescence 1–5-flowered; flowers white or pale lilac-pink, the sepals darker towards the base.
Ovary and pedicel purplish, 10–14 mm long.
Bracts leaf-like, 9–13 × 3–5 mm.
Petals c. 7 × 3 mm, triangular.