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Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Yushania yadongensis
HABIT Perennial. Rhizomes short; pachymorph. Culms erect; 400 cm long; 10–20 mm diam.; woody. Culm-internodes terete; hollow; 21–34 cm long; striate; distally mealy. Lateral branches dendroid. Branch complement several. Culm-sheaths tardily deciduous; 9–20 cm long; coriaceous; glabrous; without auricles; glabrous on shoulders. Culm-sheath ligule 0.5 mm high. Culm-sheath blade linear, or lanceolate; reflexed; 1.2–5.5 cm long; 1.5–2.5 mm wide; glabrous on surface. Leaves 2–3 per branch. Leaf-sheaths pubescent. Leaf-sheath oral hairs setose; 3–4 mm long. Ligule an eciliate membrane; 0.5 mm long; truncate. Leaf-blade base cuneate; with a brief petiole-like connection to sheath; petiole pubescent. Leaf-blades lanceolate; 3.5–6 cm long; 5–8 mm wide; chartaceous. Leaf-blade venation with 4 secondary veins; with distinct cross veins. Leaf-blade surface pilose. Leaf-blade margins scabrous. Leaf-blade apex acuminate.
INFLORESCENCE Flowering specimens unknown.
DISTRIBUTION Asia-temperate: China. Asia-tropical: India.
NOTES Arundinarieae. Yi 2002.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.