Culms 2–4 m, ca. 1 cm in diam.; internodes gray-green, to 27 cm, initially sometimes sparsely hairy, glaucous below nodes, nearly solid; nodes swollen; sheath ring corky, setose. Culm sheaths green, basally suboblong, glabrous but densely setose at base, margins ciliate, apex broad; auricles absent; oral setae absent or scarce, erect; ligule purple, arcuate, 1–2 mm, scabrid or roughly hairy, uniform, ciliate; blade deciduous, usually reflexed, green but with purple margins and apex, lanceolate, ca. 1/3 as wide as sheath apex, tomentose. Leaves 5–7 per ultimate branch; sheath smooth, glabrous or hirsute, margins ciliate; auricles initially present, developed or weak; oral setae dull brown, ca. 1 cm, undulate; ligule convex, 1–2 mm, hirsute, uniform; blade lanceolate or elliptic-lanceolate, 10–22 × 0.8–2.6 cm, abaxially pubescent, adaxially smooth and glabrous, secondary veins 5- or 6-paired, margins serrulate. Inflorescence unknown. New shoots Apr–May.

* Guangdong, Guangxi, Hainan.