Herbs, epiphytic. Pseudobulbs densely arranged, cylindric, 1-3.5 cm × 3-5 mm. Leaf 1, oblong to ligulate, 8-12 × 1.2-1.9 cm, papery, narrowed toward base into a short petiole, articulate, apex acuminate. Inflorescence compressed cylindric, ca. 19 cm, conspicuously exceeding leaf, narrowly winged; rachis laxly 10-flowered; floral bracts narrowly lanceolate, 6-10 mm. Flowers orange-yellow; pedicel and ovary 1-1.5 cm. Dorsal sepal ligulate, ca. 1.1 cm, apex acuminate; lateral sepals oblique. Petals narrowly linear, ca. 11 × 0.5 mm, apex subacute; lip obovate, ca. 11 × 6 mm, base cuneate, with a longitudinal ridge from base to middle. Column slightly arcuate, ca. 5 mm, upper part with narrow wings on both sides. Fl. May-Jul.
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