A terrestrial herb 1–5 dm. high, glabrous except for the roots.. Tubers ovoid or ellipsoid, 1–3 cm. long, 0.7–2 cm. in diameter, densely tomentose.. Stem erect, slender to rather stout, with 1 or 2 leaves at or near the base and a number of sheaths along the rest of the stem.. Leaves ± adpressed to the ground, the upper one sometimes 1–2 cm. above the lower, spreading, the lower one reniform, orbicular or ovate, apiculate, the upper one where present normally narrower, broadly ovate to lanceolate-ovate, acute, 1.7–10 cm. long, 1.5–9 cm. broad; sheaths usually adpressed to the stem, lanceolate, acuminate, often overlapping, up to 4 cm. long.. Inflorescence 4–20 cm. long, 2–3 cm. in diameter, rather densely 6-to many-flowered.. Bracts leafy, lanceolate, acuminate, 7–25 mm. long, the lower ones longer than the ovary with pedicel.. Flowers curving outwards, green; pedicel with ovary curved, 1–1.5 cm. long.. Dorsal sepal ± erect, very convex, ± elliptical, obtuse, 3.5–5 mm. long, ± 2.5 mm. broad; laterals deflexed, obliquely and curved semi-ovate, subacute, 5–6.5 mm. long, 2–3 mm. broad.. Petals entire, erect, adherent to the dorsal sepal, obliquely oblong-lanceolate or lanceolate, subacute, 3.5–5 mm. long, ± 1.5 mm. broad.. Lip deflexed, tripartite from an undivided base ± 1 mm. long; lobes ± incurved, linear, rather fleshy, the middle lobe 4.5–7 mm. long and ± 1 mm. broad, the side lobes a little shorter and narrower.. Spur pendent, ± curved forwards, 1.7–2.7 cm. long, slightly swollen in the apical half.. Anther erect, 2.5–4 mm. long, loculi parallel, canals porrect, scarcely 1 mm. long.. Stigmas porrect, club-shaped, papillose beneath, nearly 2 mm. long.. Rostellum erect, triangular-linear, subacute, 1–2.5 mm. long.
Home