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

24. Yushania elevata T. P. Yi, J. Bamboo Res. 5(1): 17. 1986.

腾冲玉山竹 teng chong yu shan zhu

Rhizome neck to 70 cm; internodes solid. Culms 4–7 m, 1.4–6 cm in diam.; internodes terete, 24–60 cm, initially brown setulose below nodes; wall 4–8 mm thick; nodes with weakly prominent to prominent supra-nodal ridge; sheath scar initially brown setose. Branches 10–20, solid or nearly so. Culm sheaths gradually deciduous, narrowly triangular, shorter than internodes, leathery to cartilaginous, densely yellow-brown woolly setose, margins densely brown setose, longitudinal ribs prominent; auricles absent; oral setae gradually deciduous; ligule convex or rarely truncate, ca. 1 mm, glabrous; blade linear-lanceolate, revolute, glabrous. Leaves 4–6 per ultimate branch; sheath glabrous; auricles absent; oral setae absent or few, erect, brown, 0.5–1 mm; ligule convex, ca. 0.5 mm, glabrous; blade narrowly lanceolate, 4.5–9.5 × 0.4–0.9 cm, glabrous, secondary veins 2- or 3-paired, transverse veins distinct, base cuneate, one margin serrulate, other margin smooth, apex acuminate. Inflorescence unknown. New shoots Jul.

* 2000–2300 m. W Yunnan.


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