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Plants 300-800 mm; leaves cauline, many, erect, narrowly lanceolate, acute, to 330 x 16 mm. Inflorescences fairly dense, many-flowered; bracts lanceolate, acuminate, to 33 mm long, usually shorter than the flowers; pedicel plus ovary straight, 25-40 mm long. Flowers green. Sepals minutely papillose; median erect, concave, narrowly elliptic, obtuse, 10-15 mm long; laterals spreading, obliquely ovate, shortly acuminate, 11-18 mm long. Petals bipartite nearly to the base; upper lobe erect, linear, as long as the median sepal and adherent to it; lower lobe curved upwards, linear, longer than the upper, 14-23 mm long. Lip cruciform, all lobes pubescent in the basal half; midlobe deflexed, linear, 12-17 mm long; side lobes abruptly divergent, ligulate, 11-15 mm long; spur recurved and much inflated in the apical half, 14-23 mm long. Anther acute, narrowed basally, 6.5-9.5 mm tall; canals porrect and recurved, c. 2 mm long; stigmatic processes clavate, adpressed throughout their length, 5.5-7.5 mm long; central rostellum lobe subulate, 2.5-4 mm long.
Lip 3-lobed to 2–3 mm from base; mid-lobe 11.5–20 × 1–1.5 mm, linear, somewhatdeflexed; side lobes ± spreading, 11–17 × 1.5–3 mm, lanceolate-ligulate, subacute, the apices slightly upturned, densely pubescent or papillose at base; spur 14–23 mm long, ± recurved with 1 twist in middle, swollen to c. 2 mm diameter in apical half.
Terrestrial herb, up to 400 mm tall. Lip lobes shortly but distinctly hairy towards base. Leaves linear, up to 180 x 7 mm. Spur ± 14 mm long, swollen in upper half. Flowers green or yellowish green.
Terrestrial herb, up to 400 mm tall. Lip lobes shortly but distinctly hairy towards base. Leaves linear, up to 180 x 7 mm. Spur ± 14 mm long, swollen in upper half. Flowers green or yellowish green.
Petals 2-lobed almost to base; upper lobe 9–15 mm long, narrowly linear, adnate to dorsal sepal; lower lobe 14–23 × 0.5–1.5 mm, linear, spreading upwards.
Dorsal sepal erect, 9.5–15 × 3.5–5 mm, elliptic, obtuse, convex; lateral sepals spreading, 11–18 × 6–8.5 mm, obliquely ovate, acuminate.
Leaves 5–11, the largest erect, 18–33 × 0.5–1.5 cm, linear-lanceolate, conduplicate, sheathing at base.
Anther erect, 6.5–9.5 mm tall, canals c. 2 mm long, partly adnate to column, upcurved at tips.
Terrestrial herb to 80 cm tall; tubers to 3.5 × 2 cm, ovoid or ellipsoid, tomentose.
Inflorescence to 24 × 7 cm, fairly densely many-flowered; bracts 1.5–3.5 cm long.
Stigmatic arms 5.5–7.5 mm long, club-shaped, curving down over base of lip.
Rostellum mid-lobe 2.5–4 mm long, narrowly triangular, acute.
Flowers yellow-green, the side lobes of lip white at base.
Ovary and pedicel 5 cm long.
Stem leafy.
