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Lip 3-lobed, 4–8 × 2–6 mm across side lobes when flattened; side lobes erect; mid-lobe elliptic; callus of 3 basal ridges turning to papillae on mid-lobe; spur 3–5 mm long, decurved in the apical half, sometimes swollen at tip.
Perennating organs subterranean, pseudobulbous, 2.5–5 × 1–2 cm, conical, with several nodes, forming a chain; roots 0.5–1 mm in diameter.
Leaves 5–7, the 2 lowest sheath-like, forming a tuft, 3–10 cm × 1–4 mm, linear, acuminate, green, coriaceous, conduplicate.
Capsules 12–15 mm long, pendent, starting to develop at the base of the inflorescence before the apical buds are open.
Inflorescence laxly 6–13-flowered; scape with a short sheathing bract in the middle.
Petals 6–10 × 1–3 mm, linear to lanceolate, acute, projecting over column.
Sepals 7–11 × 1 mm, linear, acuminate, recurved at the tips.
Pedicel and ovary slightly arched, 7–12 mm long.
Bracts 3–6 mm long, lanceolate, acuminate.
Flowers greenish, in a rather lax spike.
Terrestrial herb 20–55 cm tall.
Column 2–3 mm long.
