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 laetevirens

HABIT Perennial. Rhizomes short; pachymorph. Culms erect; 250–350 cm long; 6–10 mm diam.; woody. Culm-internodes terete; with small lumen; 20–30 cm long; striate; distally mealy. Lateral branches dendroid. Bud complement 1. Branch complement several. Culm-sheaths persistent; 0.5 length of internode; coriaceous; glabrous; glabrous on margins; without auricles; glabrous on shoulders. Culm-sheath ligule 1–1.4 mm high. Culm-sheath blade linear, or lanceolate; reflexed; 0.7–5.8 cm long; 1–2.5 mm wide. Leaves 3–5 per branch. Leaf-sheaths 2.2–3.2 cm long; glabrous on surface; outer margin glabrous. Leaf-sheath oral hairs lacking. Ligule an eciliate membrane; 1 mm long; truncate. Leaf-blade base cuneate; with a brief petiole-like connection to sheath. Leaf-blades linear, or lanceolate; 4.5–13 cm long; 10–13 mm wide; chartaceous. Leaf-blade venation with 6–8 secondary veins; with obscure cross veins. Leaf-blade surface glabrous. Leaf-blade margins scabrous. Leaf-blade apex acuminate.

INFLORESCENCE Flowering specimens unknown.

DISTRIBUTION Asia-temperate: China.

NOTES Arundinarieae. Yi 2002.

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