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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 short; pachymorph. Culms erect; 700–1300 cm long; 40–100 mm diam.; woody. Culm-internodes terete; hollow; 30–48 cm long. Lateral branches dendroid. Branch complement three. Culm-sheaths deciduous; 25–30 cm long; hispid; hairy on margins; convex at apex; auriculate; ciliate on shoulders. Culm-sheath ligule 4 mm high; ciliate. Culm-sheath blade lanceolate; deciduous; spreading, or reflexed; 10–20 cm long; 10–12 mm wide; pubescent. Leaves 3–4 per branch. Leaf-sheaths glabrous on surface; outer margin hairy. Leaf-sheath oral hairs ciliate; deciduous. Leaf-sheath auricles absent. Ligule a ciliolate membrane; 2 mm long; pubescent on abaxial surface; truncate. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 10–15 cm long; 8–18 mm wide. Leaf-blade venation with 10–12 secondary veins; with distinct cross veins. Leaf-blade margins scabrous. Leaf-blade apex attenuate.
INFLORESCENCE Inflorescence composed of racemes, or comprising only a few spikelets.
Racemes 1; single; bearing few fertile spikelets; bearing 2–4 fertile spikelets on each.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 3–12 fertile florets; with diminished florets at the apex. Spikelets linear, or lanceolate; laterally compressed; 15–65 mm long; breaking up at maturity; disarticulating below each fertile floret.
GLUMES Glumes two; persistent; similar; shorter than spikelet. Lower glume ovate; chartaceous; without keels. Lower glume apex acute. Upper glume ovate; chartaceous; without keels. Upper glume apex acute; mucronate.
FLORETS Fertile lemma ovate; 10–13 mm long; chartaceous; without keel; 15 -veined. Lemma apex acuminate. Palea 9 -veined. Palea keels ciliolate; adorned above. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 3; veined. Anthers 6. Stigmas 3.
FRUIT Caryopsis with adherent pericarp; apex unappendaged.
DISTRIBUTION Asia-temperate: China.
NOTES Arundinarieae. Yang 2002.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.