Plants 15-20 cm tall. Rootstock tuberous, ovoid, 3-5 × ca. 0.4 cm. Stem erect, slender, with basal sheaths, 2-leaved. Leaves basal, ovate to ovate-oblong, 5-7 × 2-3 cm, membranous, base contracted and sheathing, apex acute. Rachis many flowered; floral bracts lanceolate to ovate-lanceolate, 6-9 × 2-3 mm, apex acute. Flowers pale green to yellowish green; pedicel and ovary cylindric, 4-6 mm. Dorsal sepal ovate, 2-2.5 × ca. 1.5 mm, glabrous, apex obtuse; lateral sepals ovate, 1.5-2 × ca. 1.5 mm, apex obtuse or acute. Petals narrowly ovate, 2-3 × ca. 1 mm, glabrous, apex acuminate; lip ligulate, 4-6 × 2-3 mm, entire, apex obtuse-rounded; spur 2-2.5 × ca. 1 mm.
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