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Lip 8–12 × 5.5–8 mm, 3-lobed; side lobes rounded in front, almost as long as mid-lobe; mid-lobe ovate-elliptic, obtuse; callus of 2 basal ridges, shortly papillate on the apex at the base of the mid-lobe; spur 3–3.5 mm long, cylindrical, slightly incurved.
Sepals and petals elliptic-oblong, acuminate; dorsal sepal 18 × 5 mm; lateral sepals 20–22 × 7–8 mm; petals 12 × 4 mm, characteristically much shorter than the sepals.
Leaves 3, erect, 20–45 cm × 1–3 mm, linear, acute, grass-like, present at flowering time and longer than the inflorescence.
Perennating organs subterranean, tuberous, c. 1 cm tall, 1–1.2 cm in diameter, conical; roots slender, 1 mm in diameter.
Inflorescence 17–35 cm tall, densely several-to many-flowered; scape covered by brown, papery, acuminate sheaths.
Flowers lemon or canary-yellow, the lip deeper in colour, sometimes with an orange tip.
Bracts 8–38 mm long, linear, acuminate.
Column 3–4 mm long; foot 1–2 mm long.
Terrestrial herb 17–45 cm tall.
Pedicel and ovary 8–10 mm long.
