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FOC | Family List | FOC Vol. 22 | Poaceae | Yushania

56. Yushania pachyclada T. P. Yi, J. Bamboo Res. 5(1): 54. 1986.

粗枝玉山竹 cu zhi yu shan zhu

Rhizome neck 15–35 cm. Culms 1–2 m, 3–10 mm in diam.; internodes 20–30 cm, grooved or flattened above branches, glabrous, initially with white powdery ring below each node, nearly solid; supra-nodal ridges weakly prominent; sheath scar prominent. Branches 1 at lower nodes, 2–5 at upper nodes. Culm sheaths persistent, narrowly rounded, leathery, usually glabrous, margins glabrous; auricles and oral setae absent; ligule truncate or arcuate, ca. 1 mm, glabrous; blade conical or linear-lanceolate, glabrous, revolute. Leaves 2–5 per ultimate branch; sheath glabrous; auricles and oral setae absent; ligule truncate, ca. 1 mm, glabrous; blade lanceolate, 6–14 × 1.1–2 cm, glabrous, secondary veins 4–6-paired, transverse veins slightly distinct, base cuneate, margins serrulate. Inflorescence unknown. New shoots Jun.

* 1700–1800 m. S Sichuan, NE Yunnan.


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