Rhizomes amphipodial. Culms erect, 1.2–1.6 m, 5–7 mm in diam.; internodes initially green, setose, apically glaucous; supra-nodal ridge prominent, persistent sheath base corky, initially densely long, purple-brown hispid. Branches erect, basally adnate to culm. Culm sheath late deciduous to persistent, initially dark green and purple, distinctly spotted, ca. 1/2 as long as internode, brittle, subleathery, densely long, purple-brown hispid, becoming scabrous and verruculose from persistent bristle bases, basally long, dark purple hispid; auricles and oral setae absent; ligule arcuate, less than 1 mm, ciliolate; blade reflexed, subulate or linear, 1.6–2.8 cm, glabrous. Leaves (2 or)3 or 4 per branchlet; sheaths glabrous, margins initially long ciliate; auricles and oral setae deciduous; ligule truncate, less than 1 mm; blade 11–18 × 1.4–2.5 cm, glabrous, secondary veins 6-or 7-paired, transverse veins distinct. Inflorescence unknown.
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