An herbaceous plant up to 20 cm. tall arising from a basal tuber.. Stem erect, slender, about 8 cm. long, ± 7-leaved.. Leaves suberect to arcuate, narrowly lanceolate, acuminate, somewhat sheathing at the base, to 6.5 cm. long, 0.7 cm. wide.. Inflorescence erect, ± 9 cm. long, few-flowered; peduncle and rhachis slender, wiry; bracts lanceolate, acuminate, up to 9 mm. long.. Flowers white with a yellow mark on the lip, ascending.. Dorsal sepal elliptic, rounded at apex, 6 mm. long, 3.5 mm. wide; lateral sepals oblong-elliptic, obtuse, 6.5 mm. long, 3.5 mm. wide.. Petals ovate-elliptic, rounded at apex, 5.5 mm. long, 3.5 mm. wide.. Lip flabellate, deeply emarginate at apex, mucronate in apical sinus, 1.2 cm. long, 0.8 cm. wide, with erose margins.. Spur at base of lip cylindrical, united for entire length to ovary, 4.5 mm. long; callus tapering from base to apex of lip, verruculose.. Column erect, 3 mm. high.
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