A medium-sized epiphytic herb with a creeping rhizome 2 mm. diameter.. Pseudobulbs 2-leaved, narrowly cylindrical-conical, tapering slightly to apex, 5–11 cm. long, 0.5–1 cm. diameter, 4.5–6 cm. apart on rhizome.. Leaves coriaceous, suberect, linear-oblong or narrowly oblong-elliptic, rounded, shortly petiolate, 12–15 cm. long, 1–1.8 cm. broad.. Inflorescence erect, up to 33 cm. long, densely many-flowered above; peduncle terete; rhachis terete, to 13 cm. long; bracts distichous, scarious, spreading, lanceolate, acuminate, 7–8 mm. long.. Flowers greenish yellow to purple, all turned 90° to face to one side.. Dorsal sepal lanceolate, acuminate, 5.4–7.5 mm. long, 1.7–2.7 mm. broad; lateral sepals reflexed, lanceolate-falcate, acute, 4.8–7.6 mm. long, 1.6–2.3 mm. broad.. Petals linear-lanceolate, acute, 1.9–2.2 mm. long, 0.3–0.4 mm. broad.. Lip fleshy and reflexed at base, linear, 4.6–5.5 mm. long, 0.25–0.3 mm. broad, shortly ciliate at base, long-ciliate above.. Column 1.7–2 mm. long; stelidia long-acuminate, 0.8–1 mm. long; anther-cap orbicular with a central boss.
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