Description from Flora of China
Culms internodes flexuose, yellow-green, grooved above branches, glabrous; nodes very prominent, initially pubescent beneath corky ring. Culm sheaths leathery, initially coarsely yellow-brown setose, with striae later, margins pubescent near base, glossy; auricles weak, brown, scabrid, tomentose; ligule arched, basally densely pubescent, ciliolate; blade erect, triangular, ca. 1/3 as wide as sheath apex, glabrous, many veined. Leaves 2–4 per ultimate branch; sheath glabrous, margins ciliolate, apically pubescent; auricles obscure, ovate, or absent; oral setae few, curved, 7–8 mm; ligule arcuate, ca. 1 mm, coarsely yellow-brown hairy; blade lanceolate, 5–8 × 0.7–1 cm, glabrous, margins serrulate. Flowering branches lateral. Pseudospikelets 1–3, ca. 9 × 0.2–0.3 cm, bracts 2, prophyll nearly leathery, glabrous, 2-keeled; florets to 11. Rachilla slightly flexuose, glabrous. Lemma glabrous, acute; palea sparsely ciliolate, apex rounded; lodicules 3, posterior shorter and thicker, rhomboid. Stamens (2 or)3. Anthers yellow. Ovary glabrous, base constricted into a stalk, 1.5–2 mm; style very short, ca. 0.3 mm; stigmas 3, ca. 3 mm.