Culms ca. 3 m, 1–2 cm in diam.; internode initially green or orange under culm sheath, densely brown strigose and white pubescent especially below nodes, glabrescent, with papillae and imprints of fallen hairs except below nodes, pith spongy; nodes strongly elevated, supra-nodal ridge with an elevated keel; sheath scar weakly prominent. Culm sheaths orange, ca. 1/2 as long as internodes, leathery, densely dark brown strigose, base yellow-brown pubescent, outer margin dark brown ciliate, inner margin glabrous; auricles reflexed, suborbicular, large; oral setae in 1 row, radiate, to 2 cm; ligule obliquely arcuate or truncate, 2–3 mm, dark brown pubescent, margin lacerate and fimbriate with setae more than 1 cm; blade deciduous, reflexed, lanceolate, abaxially glabrous, adaxially densely yellow hirtellous toward base. Leaves 2–11 per ultimate branch; sheaths pubescent and minutely setose; auricles and oral setae as for culm sheaths; ligule 2–12 mm; blade 15–28 × 1.5–2.5 cm, abaxially pubescent or glabrous, adaxially glabrous, secondary veins 5–9 pairs, transverse veins remote. Inflorescence unknown. New shoots May–Jun.
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