Pseudobulbs cylindric, 1-1.3 × 0.2-0.5 cm, scale of subterminal node ± persistent. Petiole 1-3.5 cm; leaf blade tessellate, elliptic, 6.7-11.1 × 1.3-2 cm, slightly acuminate. Inflorescence terminal, arising from base of pseudobulb; peduncle 9.5-27 cm, 1-2 mm in diam.; rachis 2.2-8.3 cm; floral bracts triangular, 3-8 mm. Flowers mostly open simultaneously, opening widely; sepals and petals pale brownish to pale brownish yellow, lip lateral lobes white, mid-lobe yellow, keels white; pedicel and ovary 6-11 mm, longer than bracts. Dorsal sepal elliptic to obovate, 11.5-14 × ca. 1.5 mm, acute to obtuse; lateral sepals elliptic to triangular, strongly falcate, ca. 11 × 2 mm, acute to obtuse. Petals elliptic to obovate, strongly falcate, 11-13 × ca. 2 mm; lip 8-9 × 6.5-7 mm, 3-lobed; lateral lobes obliquely triangular, falcate, 1-1.5 mm, obtuse; mid-lobe transversely elliptic, ca. 3 × 6-7 mm, slightly acuminate; disk with 3 keels, sometimes raised platelike distally. Column 5.5-6 mm; foot 1-1.5 mm.
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