GrassBase - The Online World Grass Flora


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

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

Indocalamus youxiuensis

HABIT Perennial; caespitose. Rhizomes elongated; leptomorph. Culms erect; 100–150 cm long; 4–7 mm diam.; woody. Culm-internodes terete; with small lumen; 15–28 cm long; distally mealy. Lateral branches suffrutescent. Branch complement one. Culm-sheaths persistent; 1 length of internode; coriaceous; hispid; with appressed hairs; with dark brown hairs; hairy on margins; without auricles; glabrous on shoulders. Culm-sheath blade linear, or lanceolate; erect, or spreading; 0.7–4 cm long; 1.5–4.5 mm wide. Leaves cauline; 3–6 per branch. Leaf-sheaths 10–16 cm long; glabrous on surface; outer margin glabrous. Leaf-sheath oral hairs lacking. Leaf-sheath auricles absent. Ligule an eciliate membrane; 2–2.5 mm long; obtuse. Leaf-blade base cuneate; with a brief petiole-like connection to sheath; petiole 0.3–0.5 cm long. Leaf-blades lanceolate, or oblong; 20–35 cm long; 40–80 mm wide; chartaceous; mid-green and glaucous; discolorous with last colour beneath. Leaf-blade venation with 20–28 secondary veins; with distinct cross veins. Leaf-blade surface glabrous. Leaf-blade margins scabrous. Leaf-blade apex attenuate.

INFLORESCENCE Flowering specimens unknown.

DISTRIBUTION Asia-temperate: China.

NOTES Arundinarieae. Lin 2002.

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