Stem short. Leaves subbasal, 5-8, distichous-equitant, laterally compressed, ensiform, sometimes slightly falcate, (6-)12-21 × (0.8-)1.1-2.2 cm, thick, veins obscure, base articulate, apex acuminate. Peduncle compressed cylindric, 13-28 cm, with narrow wings on both sides, including wings 5-6 mm wide, sometimes with several sterile bracts; rachis 6.5-11 cm, 4-5 mm in diam., densely many flowered; floral bracts nearly broadly oblong or orbicular, 1.5-2 × ca. 1.5 mm, margin minutely erose-incised, apex subtruncate. Flowers greenish yellow; pedicel and ovary ca. 0.8 mm. Sepals broadly ovate, 1-1.2 × ca. 1 mm, apex obtuse; lateral sepals somewhat oblique. Petals ovate, ca. 1.1 × 0.5 mm, margin slightly undulate or inconspicuously minutely erose-incised, apex acuminate; lip suboblate, 1.2-1.5 × 1.4-1.6 mm, entire, somewhat irregularly shallowly undulate at margin. Column short, stout. Capsule subellipsoid, 5-6 × 3-3.5 mm, with a very short pedicel. Fl. Sep, fr. next Apr. 2n = 30.

Epiphytic on trees in forests on limestone; 1000-1600 m. S and SW Yunnan [Laos, Malay Archipelago (Borneo), Vietnam].