Plants slender, 180-240 mm; basal leaves 2, broadly ovate to orbicular, acute, 35-70 x 30-70 mm, cauline leaves 13-20, lanceolate, acuminate. Inflorescences fairly dense, many-flowered; bracts lanceolate, acuminate, 10-17 mm long; pedicel with ovary curved, c. 15 mm long. Flowers green. Median sepal reflexed, concave, ovate, acute, 5-7 mm long; lateral sepals ovate, acute, 7-9 mm long. Petals deeply bipartite, puberulous; upper lobe erect, narrowly oblong, acute, adherent to the median sepal, 5-7 mm long; lower lobe upcurved, linear, 5-9 mm long. Lip deeply tripartite, puberulous; midlobe narrowly oblong, acute, 6-11 mm long; side lobes linear, acute, 7-10 mm long; spur twisted, slightly inflated in the apical third, 18-26 mm long. Anther reflexed, c. 2 mm tall, canals slightly up-curved, c. 1 mm long; stigmas de-curved onto the lip, narrowly oblong, 2-2.5 mm long; central rostellum lobe triangular, c. 1 mm long.
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Terrestrial herb, geophyte, slender, 0.18-0.24 m high; with globose root tubers. Leaves 2, basal, radical, unequal in size, broadly ovate to orbicular, the larger 35-70 x 30-70 mm. Inflorescence fairly dense, racemose; flowers many, resupinate, green. Sepals unequal; dorsal sepal 5-7 mm long, reflexed. Petals divided; upper lobe adherent to dorsal sepal; lower anterior lobe 5-9 mm long, linear curving upwards. Lip 3-lobed, midlobe 6-11 mm long, narrowly oblong, 2 side lobes of similar length or slightly shorter; spur 18-26 mm long, cylindrical, pendent to horizontal, spirally twisted, apex inflated. Flowering time Feb.-Apr.
Terrestrial herb, up to 240 mm tall. Spur up to 24 mm long. Anterior petal lobe and side lobes of lip ± terete. Middle lobe of lip ligulate with ciliolate margins. Flowers green.
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