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Lip 3-lobed, with basal undivided part 1–2 mm long; mid-lobe 10–17 mm long, c. 1 mm wide, linear, deflexed; side lobes 17–30 mm long, 0.5–1 mm wide at base, becoming filiform and curving up like lower petal lobe; spur 7–13 mm long, very swollen at tip, pendent.
Petals 2-lobed almost to base; posterior lobe 9–16 × 1–1.5 mm, linear, erect; anterior lobe (13)17–26 mm long, 0.5 mm wide at the base, becoming filiform, spreading and curving up.
Leaves 11–16, the lowermost 3–4 sheath-like, the rest erect, appressed to stem, grading into bracts at the top, the largest 2.5–7 × 1–3.6 cm, broadly lanceolate, acute.
Flowers emerging horizontally from the bracts, green or yellow-green; whole plant drying yellow-green or yellow-brown.
Dorsal sepal 8.5–14 × 5–8 mm, ovate, erect, convex; lateral sepals 10–15 × 3–4.5 mm, obliquely lanceolate, deflexed.
Inflorescence 6–15 × 3–5 cm, densely 8-to many-flowered; bracts up to 40 mm long, longer than the flower.
Terrestrial herb 20–60 cm high; tubers up to 1.5 cm long, ellipsoid or subglobose, sparsely hairy.
Stigmatic arms 3–4 mm long, deflexed along the base of the lip.
Anther erect, 3–4 mm high; canals c. 1 mm long.
Auricles c. 2 mm long, shorter than the anther.
Ovary and pedicel 15–20 mm long, arched.
Stem leafy along its length.
