Indosasa triangulata

HABIT Perennial. Rhizomes elongated; leptomorph. Culms erect; 300–500 cm long; 10–25 mm diam.; woody; 15–20 -noded. Culm-internodes terete; with small lumen; 10–40 cm long; striate; distally glabrous. Culm-nodes swollen; with distinct supra-nodal ridge; glabrous. Lateral branches dendroid. Buds or branches present on lower quarter of culm. Branch complement three. Culm-sheaths deciduous; 21–32 cm long; 3 times as long as wide; coriaceous; hispid; with tawny hairs; hairy on margins; without auricles; setose on shoulders; shoulders with straight hairs; shoulders with 5–10 mm long hairs. Culm-sheath ligule 1 mm high; brown; entire. Culm-sheath blade lanceolate; narrower than sheath; deciduous; reflexed; 3–10 cm long; 2–4 mm wide; glabrous on surface. Leaves 3–5 per branch. Leaf-sheaths deciduous; 5.5–7 cm long. Leaf-sheath oral hairs scanty, or lacking. Leaf-sheath auricles absent. Ligule an eciliate membrane; 1–2 mm long; purple; truncate, or obtuse. Leaf-blade base cuneate; with a brief petiole-like connection to sheath; petiole 0.3–0.8 cm long; petiole glabrous. Leaf-blades lanceolate; 9–19 cm long; 12–25 mm wide; chartaceous; mid-green and grey-green; discolorous with last colour beneath. Leaf-blade venation with 10–14 secondary veins; with obscure cross veins. Leaf-blade surface glabrous. Leaf-blade margins scaberulous. 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.