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

35. Yushania laetevirens T. P. Yi, J. Bamboo Res. 9(3): 33. 1990.

亮绿玉山竹 liang lü yu shan zhu

Rhizome neck 17–42 cm; internodes solid. Culms 2.5–3.5 m, 6–10 mm in diam.; internodes terete, 20–45 cm, obscurely longitudinally ribbed, initially white powdery, glabrous; wall 1.5–2.5 mm thick; supra-nodal ridges level or prominent; sheath scar prominent. Branches 5–9. Culm sheath persistent, triangularly narrowly rounded, ca. 1/2 as long as internodes, leathery, prominently longitudinally ribbed, glabrous; auricles and oral setae absent; ligule truncate, 1–1.4 mm; blade reflexed, linear-triangular or linear-lanceolate. Leaves 3–9 per ultimate branch; sheath glabrous; auricles and oral setae absent; ligule truncate, ca. 1 mm, usually white powdery; blade linear-lanceolate, 7.5–13 × 1–1.3 cm, glabrous, secondary veins 3- or 4-paired, transverse veins slightly distinct, base cuneate, one margin serrulate, other margin smooth. Inflorescence unknown. New shoots Aug.

* 1300–1500 m. NE Yunnan.


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