Culms to 8 m, 3–4 cm in diam., straight; internodes gray-green at maturity, to 26 cm, initially thinly white powdery, glabrous; wall ca. 3 mm thick; nodal ridge weakly elevated, as prominent as sheath scar. Culm sheaths milky-white, tinged with yellow-green, unequally striped with purple, with sparse, small, brown spots, not white powdery, glabrous, margins ciliate; auricles and oral setae absent; ligule pale yellow-green, truncate or slightly convex, tall, narrow, notched or laciniate, with pale cilia to 5 mm; blade spreading or reflexed, greenish cream or sometimes purple, linear, flat. Leaves 2 or 3 per ultimate branch; auricles absent; oral setae sometimes present; ligule exserted, yellow-green; blade linear-lanceolate or lanceolate, 5–17 × 1.2–2 cm, abaxially proximally pilose. Inflorescence not known. New shoots late Apr. 2n = 48*.
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A bamboo. It has creeping rhizomes or underground stems. The culms are 7.5 m long and 2.5 cm across. The internodes are 15-19 cm long. The shoots are 20 cm long.
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