Stems arching, to 50 cm, 2-3 mm in diam., laxly many leaved. Leaf blade terete, 5-15 cm × ca. 2 mm, fleshy, obtuse. Inflorescences usually 1 or 2, 5-10 cm, unbranched, laxly many flowered; floral bracts triangular, ca. 2 mm. Flowers white, small; lip mid-lobe lilac; pedicel and ovary 4-5 mm. Sepals broadly ovate-elliptic, ca. 2.2 × 1.6 mm, obtuse; lateral sepals slightly larger than dorsal sepal. Petals ovate, ca. 2 × 1 mm, rounded; lip spurred at base, 3-lobed; lateral lobes erect, broadly ovate, ca. 0.3 mm, rounded; mid-lobe ovate, cymbiform, ca. 1 mm, fleshy, acute and incurved; spur cylindric-clavate, 3-3.5 mm, dilated toward apex, inside with a Y-shaped callus on its back wall. Column ca. 0.8 mm; stipe lanceolate, ca. 0.5 mm; viscidium ± oblong, ca. 0.5 × 0.4 mm. Fl. May-Jun. 2n = 38, 40.
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