Culms flexuose, slender, to 40 m long, 0.5–1.5 cm in diam., apically clambering; internodes 15–60 cm, with ring of white powder below node; wall 2–4 mm thick. Culm sheaths deciduous, leathery, rigid, with stiff, brown hairs, base without a projection, margins ciliate, apex concave; auricles inconspicuous; oral setae well developed, curved; ligule short or inconspicuous; blade reflexed, linear-lanceolate, apex involute to aciculate. Leaves 5–12 per ultimate branch; sheaths 5–12 cm, glabrous, outer margin ciliate; auricles inconspicuous; oral setae well developed, initially white, becoming brown; ligule suborbicular or subtruncate, dentate; petiole short; blade oblong-lanceolate, 10–25 × 1.5–2.5 cm, abaxially glabrous, margin densely scabrous to setaceous, base rounded, apex acute. Pseudospikelets 1.8–2.8 cm; bracts 2, oblong-lanceolate, ca. 1 cm, glabrous, many veined; rachilla disarticulating. Glumes absent; lemma ovate-oblong, ca. 14 × 6 mm, glabrous, many veined. Palea ca. 19 × 6 mm, many veined, apex shortly bifid, not keeled; lodicules 2, elliptic-lanceolate, membranous. Filaments long; anthers ca. 9 mm. Ovary glabrous; stigmas 3, short, plumose. Caryopsis obovate, 2–4 mm in diam., glabrous, apex with persistent style base. New shoots May–Aug.
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A climbing bamboo with far reaching branches. The stems are green, smooth and without thorns. The internodes are 12 to 20 cm long. The nodes are slanted and swollen. Roots do not form from the nodes. The leaves are usually broad rounded at the base and the mouth of the leaf sheaths have long bristly hairs.
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