GrassBase - The Online World Grass Flora

Descriptions

W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Yushania polytricha

HABIT Perennial. Rhizomes short; pachymorph. Culms erect; 100–200 cm long; 3–8 mm diam.; woody. Culm-internodes terete; solid; 37 cm long; mid-green and purple; mottled; smooth; distally mealy. Lateral branches dendroid; ascending. Branch complement one, or two, or three, or several. Culm-sheaths persistent; 7–10 cm long; coriaceous; hispid; auriculate; ciliate on shoulders; shoulders with straight hairs; shoulders with 2–4 mm long hairs. Culm-sheath ligule 1 mm high. Culm-sheath blade linear, or lanceolate; reflexed; 1.5–3.8 cm long; 1.5–3 mm wide; pubescent. Leaves 4–6 per branch. Leaf-sheaths 5.5–10 cm long; hispid. Leaf-sheath oral hairs setose; spreading; 2–5 mm long. Leaf-sheath auricles falcate. Ligule an eciliate membrane; 1 mm long; truncate. Leaf-blade base cuneate; with a brief petiole-like connection to sheath; petiole 0.3–0.4 cm long; petiole pubescent. Leaf-blades lanceolate; 9–21 cm long; 10–25 mm wide; chartaceous. Leaf-blade venation with 8–12 secondary veins; with obscure cross veins. Leaf-blade surface pubescent; hairy abaxially. Leaf-blade margins scabrous. Leaf-blade apex acuminate.

INFLORESCENCE Flowering specimens unknown.

DISTRIBUTION Asia-temperate: China.

NOTES Arundinarieae. Hsueh & Yi 2002.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.