Lip entire, 5–6 × 1.5–1.7 mm, rather fleshy, ligulate; spur (3)9–12 mm long, slender, sometimes slightly inflated in apical half, slightly incurved.
Leaves 4–7, spread along the stem, 5–12 cm long, 3–5 mm wide, linear, the two lowest sheath-like, whitish, with dark green reticulate veining.
Dorsal sepal 3–4 × 2–2.5 mm, ovate, erect, convex; lateral sepals 4–5.5 × 2–3 mm, obliquely elliptic, spreading.
Petals 3.5–4 × 1.2–2 mm, obliquely lanceolate, entire, forming a hood with the dorsal sepal.
Column c. 3 mm high; stigmatic arms clavate, 1.5–2 mm long; anther erect, c. 1.5 mm long.
Inflorescence laxly 2–10-flowered; bracts up to 12 mm long, lanceolate, acute.
Slender terrestrial herb 20–40 cm high with ellipsoid tuber 1–1.5 cm long.
Pedicel 6–8 mm long, erect; ovary arched, 10–12 mm long.
Flowers green.