|
Note - this takes you off
of our website |
GrassBase - The Online World Grass Flora
Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Chimonobambusa communis
HABIT Perennial. Rhizomes elongated; leptomorph. Culms erect; 400–700 cm long; 10–30 mm diam.; woody; without nodal roots. Culm-internodes channelled, or quadrangular; hollow; 12–25 cm long; smooth; distally glabrous. Culm-nodes flush with internodes; glabrous. Lateral branches dendroid. Branch complement three; in a horizontal line; with subequal branches; thinner than stem. Culm-sheaths deciduous; chartaceous; green, or brown; glabrous; without auricles; glabrous on shoulders. Culm-sheath ligule entire. Culm-sheath blade linear; erect; 0.5–1.1 cm long; glabrous on surface. Leaves cauline; 2–3 per branch. Leaf-sheaths 2–4 cm long; glabrous on surface. Leaf-sheath oral hairs lacking. Ligule an eciliate membrane; 1 mm long; truncate. Collar with external ligule. Leaf-blade base cuneate; with a brief petiole-like connection to sheath. Leaf-blades deciduous at the ligule; lanceolate; 8–12 cm long; 13–20 mm wide. Leaf-blade venation with 8–10 secondary veins; with distinct cross veins. Leaf-blade surface pubescent; hairy abaxially.
INFLORESCENCE Synflorescence bractiferous; paniculate; with glumaceous subtending bracts and spathaceous subtending bracts; bracts 15–25 mm long; with axillary buds at base of spikelet; with ultimate bract subtending a compact bracteolate fascicle of spikelets.
Fertile spikelets pedicelled. Pedicels 3–10 mm long.
FERTILE SPIKELETS Spikelets comprising 5–7 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 5–10 mm long; breaking up at maturity; disarticulating below each fertile floret.
GLUMES Glumes several; 3 empty glumes; persistent; similar; shorter than spikelet. Lower glume lanceolate; membranous; without keels. Lower glume apex acute. Upper glume lanceolate; 7–13 mm long; membranous; without keels; 7–10 -veined. Upper glume apex acute.
FLORETS Fertile lemma oblong; 8–13 mm long; chartaceous; without keel; 7–9 -veined. Lemma apex acute. Palea 7–11 mm long. Palea keels ciliate. Palea apex obtuse. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 3; membranous; ciliate. Anthers 3; 5–6.5 mm long. Stigmas 2.
FRUIT Caryopsis with fleshy pericarp. Endosperm evanescent.
DISTRIBUTION Asia-temperate: China.
NOTES Arundinarieae. Wen 1996.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
