Stems ascending or pendulous, to 55 cm, 3-5 mm in diam. usually unbranched, internodes 2.5-2.8 cm. Leaves facing all directions, 7-13(-20) cm × 2-2.5 mm, obtuse. Inflorescences borne from upper part of stem, ca. 1 cm, 1-7-flowered; floral bracts broadly ovate, ca. 2 mm. Flowers fleshy, greenish yellow or whitish, sometimes tinged with purple on abaxial surface and apex of sepals and petals, lip marked with purple or purplish brown, anther cap pale yellow; pedicel and ovary ca. 8 mm. Dorsal sepal ovate-oblong, 7.5-11 × 3-6 mm, obtuse; lateral sepals similar to but slightly longer than dorsal sepal, acute, dorsally carinate-winged and becoming winged at apex. Petals slightly falcate-elliptic, 7-13 × 2-4 mm, obtuse; lip 10-16 mm, thickly fleshy, without a distinct boundary between epichile and hypochile; hypochile slightly concave, base with subquadrate lateral lobes ca. 1 mm; epichile spreading, subovate, large, adaxially with a fleshy longitudinal ridge near apex, furcately bilobed; lobules subtriangular, entire, with finely papillate hairs. Column 3.5-4 mm; rostellum large, bilobed; stipe obovate, ca. 1.8 × 1.2 mm; viscidium transversely oblong, large, ca. 2.2 mm wide. Fl. Mar-May. 2n = 38.
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