Rhizome creeping, ca. 3 mm in diam., rigid, branched, with internodes 2-5 cm, rooting mainly from base of pseudobulbs. Pseudobulbs 9-18 cm apart from each other, narrowly ovoid or subcylindric, 2-4 cm, 5-10 mm in diam., narrowed toward apex, with a terminal leaf. Petiole ca. 5 mm; leaf blade oblong or ligulate, 4-10 × 1.5-3.5 cm, thickly leathery, apex obtuse and retuse. Scape from base of pseudobulb, 2-4 cm; raceme shortened, umbel-like, 2-4-flowered; floral bracts lanceolate, ca. 8 mm, apex acute. Pedicel and ovary ca. 1.5 cm. Flowers purplish red. Dorsal sepal ovate-oblong, ca. 10 × 8 mm, apex truncate and emarginate, ciliate; lateral sepals falcate-lanceolate, 2-4.2 cm, abaxially papillate, base adnate to column foot, twisted near base, their upper and lower edges connate to each other forming a conic-cylindric synsepal, apex caudate. Petals suborbicular, ca. 9 × 9 mm, ciliate; lip ovate, ca. 8 × 4 mm, base attached to end of column foot by a mobile joint, with 2 lamellae extending from base to near apex, apex obtuse-rounded. Column ca. 3 mm; foot ca. 5 mm, with free part ca. 2 mm; stelidia ca. 0.2 mm; anther cap irregularly denticulate margined, centrally carinate-ridged. Fl. Oct.
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