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

48. Yushania cartilaginea T. H. Wen, J. Bamboo Res. 3(2): 28. 1984.

硬壳玉山竹 ying ke yu shan zhu

Rhizome neck 16–35 cm. Culms 0.2–2.5 m, 5–7 mm in diam.; internodes terete, 15–17 cm, initially with white powdery ring below nodes, glabrous; wall 2–3 mm thick, pith initially spongy, becoming granular; supra-nodal ridges level or weakly prominent; sheath scar prominent. Branches 1 at lower nodes and 2 at upper nodes. Culm sheath persistent, triangularly narrowly rounded, 1/2–4/5 as long as internodes, cartilaginous, abaxially glabrous and waxy, margins glabrous or gray ciliolate; auricles purple, oblong to falcate; oral setae several, yellow, ca. 7 mm; ligule truncate or convex, ca. 0.25 mm, glabrous; blade erect or reflexed, linear-lanceolate. Leaves 4–6 per ultimate branch; sheath margins gray ciliolate; auricles well developed, elliptic to falcate; oral setae 7–11, purple, 4–14 mm; ligule truncate or convex, glabrous, margin fissured; blade broadly lanceolate to oblong, 10–15 × 1.8–2.8 cm, glabrous, secondary veins 5–9-paired, transverse veins distinct, base cuneate or rounded, margins smooth or one margin serrulate. Inflorescence unknown. New shoots Apr.

* About 1700 m. N Guangxi.


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