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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; woody. Culm-internodes terete; hollow; distally glabrous. Culm-nodes glabrous. Lateral branches ample; arising from lower culm. Bud complement 1. Branch complement one; solitary; as thick as stem. Culm-sheaths persistent; glabrous; without auricles. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs setose. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades oblong; 20–25 cm long; 40–50 mm wide; withering along margins. Leaf-blade surface glabrous. Leaf-blade apex acuminate.
INFLORESCENCE Inflorescence a panicle.
Panicle open; oblong; 10 cm long.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 4–8 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 20–35 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 4–5 mm long; pubescent.
GLUMES Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 1 mm long; scarious; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 1.5 mm long; scarious; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume apex acuminate.
FLORETS Fertile lemma ovate; 6 mm long; chartaceous; without keel; 9 -veined. Lemma lateral veins with cross-veins. Lemma surface scabrous. Lemma margins ciliate. Lemma apex acuminate. Palea 1 length of lemma; 10 -veined. Palea keels ciliate; adorned above. Palea apex obtuse. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 3; ovate; 1.5 mm long; veined; ciliate. Anthers 6; 4 mm long. Stigmas 3.
FRUIT Caryopsis with adherent pericarp; apex unappendaged.
DISTRIBUTION Asia-temperate: Soviet far east and eastern Asia.
NOTES Arundinarieae. Ind. Jap. Bam. 2001.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.