Rhizome slightly rigid, 5-6 mm in diam., densely covered with leathery scaly sheaths, with rather short internodes. Pseudobulbs 2.5-4 cm apart on rhizome, somewhat lucid when dried, narrowly ovoid-oblong, 2.2-3.7 × 1-1.2 cm, with 2 leaves at apex and several sheaths at base. Leaf blade oblong-lanceolate or suboblong, 8-13 × 1.6-2.1 cm, apex acuminate; petiole 2-2.5 cm. Inflorescence hysteranthous, 10-15 cm and elongated at fruiting, with imbricate, convolute, sheathing sterile bracts at interface between peduncle and rachis; rachis 4-6-flowered, lower part often slightly thickened; floral bracts almost deciduous at anthesis, ca. 1.2 cm; pedicel and ovary 8-10 mm; rachis continuing to develop and producing a further set of sterile bracts at interface between peduncle and rachis and flowers annually. Flowers green or yellowish green, ca. 10 mm in diam. Dorsal sepal oblong, 6-7 × ca. 2.8 mm, 3-veined, apex obtuse; lateral sepals ovate-oblong, similar to dorsal sepal in size. Petals linear, slightly narrowed toward base, 5-6 × ca. 0.6 mm, 1-veined; lip subovate, 6-7 × ca. 5 mm, base concave and shallowly saccate, 3-lobed; lateral lobes erect, ovate; mid-lobe nearly elliptic, ca. 4 × 3 mm, margin crisped, apex emarginate; callus with 2 inconspicuous longitudinal lamellae extending from base of mid-lobe and then diminishing. Column almost erect, subclavate, ca. 5 mm, apex narrowly winged and irregularly notched. Capsule oblong, 1.2-1.4 × 0.5-0.6 cm. Fl. Jun.
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