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Petals 2-lobed ± to base; posterior lobe 3.5–4 mm long, c. 1 mm wide, rather fleshy, lying beside dorsal sepal; anterior lobe 4–4.7 × 0.6–0.7 mm, spreading and curving up.
Leaves 7–10, fairly evenly spaced up stem, the lowermost 1–3 sheath-like, the rest spreading, the largest in the middle, 4–7.5 × 1–1.7 cm, lanceolate, acute.
Dorsal sepal 4–4.5 × 3–3.6 mm, ovate, erect, convex; lateral sepals 4.5–6 × 1.8–2.5 mm, deflexed.
Inflorescence 12–19 × 2.5–3 cm, laxly 14–20-flowered, the rhachis slightly zigzag.
Slender terrestrial herb 30–55 cm tall; tuber c. 20 × 15 mm, ellipsoid, villous.
Anther 1.75 mm tall; canals very short, less than 1 mm long.
Bracts 12–17 mm long, equalling or shorter than the flower.
Ovary and pedicel 11–14 mm long, the ovary arched.
Stigmatic arms c. 2.3 mm long.
Flowers green.
