Culms ca. 1.6 m, to 4 mm in diam.; internodes terete, to 24 cm, not powdery, apically adnately and retrorsely setulose; wall thick, cavity with woolly or irregularly lamellate pith; nodes not raised, remains of sheath base persistent. Culm sheaths gradually deciduous, or rather persistent, ca. 4/7 as long as internodes, glabrous or slightly hairy, densely white hairy toward edges, margins ciliolate; auricles obscure; oral setae present, straight or slightly curved, ca. 8 mm, rigid; ligule short, unevenly laciniate; blade erect, striate, broadly ovate-lanceolate, about as long as sheath, both surfaces glabrous, margins ciliolate, apex acuminate. Leaves 2 or 3 per ultimate branch; sheath densely pilose, margins ciliolate; auricles obscure; oral setae present, to 1.4 cm; ligule short, 0.5–1.5 mm; pseudopetiole 2–3 mm; blade lanceolate or narrowly lanceolate, 14–19 × 1.2–1.7 cm, abaxially glabrous, adaxially hairy, base cuneate, margins serrulate, apex acuminate. Inflorescence unknown. New shoots late Apr.
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