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

44. Yushania auctiaurita T. P. Yi, Acta Bot. Yunnan. 13: 145. 1991.

显耳玉山竹 xian er yu shan zhu

Rhizome neck 15–35 cm. Culms 1–2.5 m, 3–8 mm in diam.; internodes initially purple spotted, terete, 16–22 cm, white powdery below nodes, glabrous; wall 1–3 mm thick; supra-nodal ridges level or prominent; sheath scars prominent, initially retrorsely brown setose, with persistent remains of sheath base. Branches 1 at lower nodes and more than 3 at upper nodes. Culm sheaths persistent, 1/3–2/5 as long as internodes, cartilaginous, yellow-brown setose, margins densely ciliate; auricles falcate, large; oral setae many, radiating, yellow-brown, 3–6 mm; ligule arcuate, ca. 0.5 mm, glabrous; blade erect or decumbent, narrowly triangular or lanceolate, glabrous, margins serrulate. Leaves 3–8 per ultimate branch; sheath glabrous or gray pubescent, apically white powdery, margins yellow-brown ciliate; auricles purple, falcate; oral setae many, 2–7 mm; ligule arcuate, ca. 1 mm, glabrous; blade lanceolate, 8–16 × 1.3–3 cm, glabrous, secondary veins 5–9-paired, transverse veins distinct, base broadly cuneate, one margin densely serrulate, other margin obscurely so. Inflorescence unknown. New shoots Jul.

* 1700–1800 m. SE Guizhou.


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