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 pianmaensis

HABIT Perennial. Rhizomes short; pachymorph. Culms erect; 250–400 cm long; (10–)18–20 mm diam.; woody. Culm-internodes terete; solid; (8–)20–32(–36) cm long; distally glabrous. Lateral branches dendroid. Bud complement 1. Branch complement many. Culm-sheaths deciduous but leaving a persistent girdle; coriaceous; concolorous; glabrous on margins; without auricles; glabrous on shoulders. Culm-sheath ligule 1 mm high. Culm-sheath blade linear, or lanceolate; reflexed; 1.5–3.5 cm long; glabrous on surface. Leaves (3–)4–5 per branch. Leaf-sheaths 2.5–4.5 cm long; striately veined; glabrous on surface. Leaf-sheath oral hairs setose. Leaf-sheath auricles absent. Ligule an eciliate membrane; 1 mm long; purple; truncate. Leaf-blade base cuneate; with a brief petiole-like connection to sheath; petiole 0.1–0.15 cm long; petiole glabrous. Leaf-blades linear, or lanceolate; (4–)6.5–12.5 cm long; (5–)6.5–8 mm wide; chartaceous. Leaf-blade venation with 6–8 secondary veins; with distinct cross veins. Leaf-blade surface glabrous. Leaf-blade apex acuminate.

INFLORESCENCE Flowering specimens unknown.

DISTRIBUTION Asia-temperate: China.

NOTES Arundinarieae. Yi & Yang 2014.

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