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Petals 2-lobed almost to base; upper lobe erect, 6 × 0.7 mm, linear; lower lobe hinged at base, 12.5 × 2.8 mm, lanceolate-ligulate, somewhat falcate; both lobes minutely papillose towards base.
Leaves 9–11, the lowermost 5–6 erect to spreading, 2.5–16.5 cm long and 4–8 mm wide, linear or linear-lanceolate, acute, conduplicate, keeled; upper leaves 17–55 mm long, appressed to stem.
Sepals reflexed; dorsal sepal 6 × 2.3 mm, oblanceolate, obtuse, convex, somewhat rugose on outside; lateral sepals 9.3 × 6 mm, obliquely obovate, keeled, with a lateral apiculum.
Rostellum mid-lobe triangular, acute, scarcely overtopping the anther; side lobes 5.5 mm long.
Inflorescence 8–11 × 5 cm, rather laxly 10–14-flowered; bracts 10–18 mm long.
Terrestrial herb to 30 cm tall; tubers c. 2 cm long, ellipsoid.
Stigmas porrect, 4.5 mm long, the apices convex-capitate.
Flowers green, white in centre, erect to spreading.
Column c. 3 mm high; anther canals 4 mm long.
Pedicel and ovary 18–25 mm long, ± arched.
