Description from Flora of China
Herbs, epiphytic, small. Pseudobulbs somewhat densely arranged, ovoid, 4-7 × 3-5 mm. Leaf 1; petiole 7-15 cm, articulate; blade oblanceolate-oblong to suboblong, 2-7 × 0.6-1.3 cm, papery, apex acuminate. Inflorescence 4-8 cm; peduncle slightly compressed, very narrowly winged; rachis several flowered; floral bracts narrowly lanceolate, 3-5(-7) mm. Flowers pale green, often tubular in early stage due to dorsal sepal and lateral sepals connivent with each other; pedicel and ovary 4-7 mm. Dorsal sepal suboblong, ca. 4.5 × 1.2 mm, apex obtuse; lateral sepals subovate-oblong, oblique, ca. 4 × 1.4 mm. Petals ± falcate, narrowly linear, 3.5-4 × ca. 0.6 mm, apex obtuse; lip suboblong, 3.5-4 × 1.5-2 mm, slightly contracted toward base, without a callus or lamella, apex subtruncate and irregularly denticulate, with a short point. Column slightly arcuate, 2.5-3 mm, upper part winged; wings subtriangular, ca. 0.8 mm wide, ± decurrent and slightly hooked. Capsule obovoid, 5-6 × 4-5 mm; fruiting pedicel 4-5 mm. Fl. Sep-Oct, fr. next May-Jun.
● Forests or rocks along valleys; 500-1100 m. N Fujian, C and N Guangxi, C and E Guizhou, Jiangxi, SW Sichuan, Zhejiang.