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Inflorescence 6–17 × 1.5–4 cm, rather loosely to fairly densely 8-to many-flowered; bracts 20–55 mm long, lanceolate, acuminate, longer than the flowers at the base of, and usually throughout, the inflorescence.
Petals 2-lobed almost to base; posterior lobe erect, 5–11 × 1.5–2.5(4) mm, narrowly lanceolate; anterior lobe 6–14.5 mm long, 0.5–1 mm wide at the base, becoming ± filiform, spreading and curving upwards.
Lip 3-lobed to 1.5–2 mm from base; mid-lobe 10–14 × 1–2 mm, linear; side lobes similar to lower petals lobes, 9–14 mm long; spur dependent, 1–2 cm long, much swollen in apical half.
Leaves 9–17, imbricate, the lowermost 2–4 sheath-like, the uppermost bract-like, the rest erect or spreading, the largest 2.5–7.5 × 1.5–4 cm, lanceolate, acute.
Dorsal sepal 6–11 × 4–7 mm, ovate, erect, convex; lateral sepals 8–16 × 1.5–5.5 mm, obliquely lanceolate, acute, deflexed.
Flowers green or yellow-green, suberect, whole plant drying yellow-green to yellow-brown.
Terrestrial herb 30–55 cm high, with tomentose, globose or ellipsoid tubers 1–3 cm long.
Auricles as long as, or shorter than the anther, sometimes shortly stalked.
Stigmatic arms 2–3 mm long, clavate, deflexed on to lip base.
Anther erect, 2–5 mm high; canals 1–1.5 mm long.
Ovary and pedicel 13–25 mm long.
Stem leafy along its length.
