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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.
HABIT Perennial. Rhizomes elongated; leptomorph. Culms erect; 100–150 cm long; 5–6 mm diam.; woody. Culm-internodes terete; hollow; 4.5–9 cm long; distally glabrous. Lateral branches suffrutescent. Bud complement 1. Branch complement one; solitary; as thick as stem. Culm-sheaths persistent; 6.5–7.5 cm long; glabrous; without auricles; glabrous on shoulders. Culm-sheath blade lanceolate; deciduous; reflexed; 1 cm long. Leaves 6 per branch. Leaf-sheaths reticulately veined; glabrous on surface. Leaf-sheath oral hairs lacking. Leaf-sheath auricles absent. Ligule an eciliate membrane; 3–4 mm long. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades oblong; 10–23 cm long; 25–40 mm wide. Leaf-blade venation with 14 secondary veins; with distinct cross veins. Leaf-blade surface glabrous.
INFLORESCENCE Inflorescence a panicle; comprising 8–11 fertile spikelets.
Panicle open; oblong, or ovate.
Spikelets solitary. Fertile spikelets pedicelled. Pedicels 10–30 mm long.
FERTILE SPIKELETS Spikelets comprising 4–9 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 35–80 mm long; 3–6 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 4 mm long; eventually visible between lemmas; pubescent.
GLUMES Glumes several; 4 empty glumes; persistent; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 6 mm long; scarious; without keels. Lower glume apex acute. Upper glume ovate; 15 mm long; scarious; without keels. Upper glume apex acute.
FLORETS Fertile lemma ovate; 12–16 mm long; chartaceous; without keel; 12–14 -veined. Lemma apex acuminate. Palea 7–11 mm long. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 3; 2.5 mm long; glabrous. Anthers 6; 4 mm long. Stigmas 3.
FRUIT Caryopsis with adherent pericarp; apex unappendaged.
DISTRIBUTION Asia-temperate: China.
NOTES Arundinarieae. Nguyen 2002.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.