Culms ca. 8 m, to 5 cm in diam.; internodes green, 40–50 cm, glaucous below nodes, glabrous; nodes not raised, remains of sheath base persistent. Culm sheaths green, brown spotted or not, base subglabrous, margins brown ciliate, apex broad and concave; auricles elliptic; oral setae present; ligule arched, sometimes truncate or slightly concave; blade erect, striate, narrowly lanceolate to linear-lanceolate, ca. 1/4 as wide as sheath apex, glabrous, base slightly constricted, apex acuminate. Leaves 4–6 per ultimate branch; sheath densely pubescent, soon caducous, margins densely ciliolate; auricle circular to elliptic, very small; oral setae soon caducous, straight or curved, rigid; ligule acute, to 8 mm; blade oblong-lanceolate or narrowly lanceolate, 12.5–22 × 3–2.4 cm, abaxially pubescent with denser hairs along midrib, secondary veins 5–7-paired, base cuneate, margins sharply serrulate, apex acute. Inflorescence unknown.
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A bamboo. It grows 8 m high. The culms are 5 cm across. The internodes are 40-50 cm long. There are 4-6 leaves on the last branch. The leaf blade is 13-22 cm long by 1-2 cm wide.