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.

Chimonobambusa microfloscula

HABIT Perennial. Culms erect; 400–600 cm long; 15–20 mm diam.; woody; with root thorns from the nodes. Culm-internodes terete; purple; distally hispid. Culm-nodes with distinct supra-nodal ridge. Lateral branches dendroid. Branch complement three; with subequal branches. Culm-sheaths pubescent; with appressed hairs; with white hairs; without auricles; ciliate on shoulders. Culm-sheath blade linear. Leaves cauline. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs setose; pale. Leaf-sheath auricles absent. Ligule a ciliolate membrane. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath; petiole glabrous. Leaf-blades linear, or lanceolate; 9.5–19 cm long; 10–13 mm wide. Leaf-blade surface pilose; hairy abaxially. Leaf-blade apex attenuate.

INFLORESCENCE Synflorescence bractiferous; clustered at the nodes; in untidy tufts; open; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets; 8–24 cm long overall.

Fertile spikelets pedicelled. Pedicels 1–5 mm long; glabrous, or puberulous.

FERTILE SPIKELETS Spikelets comprising 6–12 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 50–75 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume oblong; 4–5 mm long; membranous; 1-keeled; 5 -veined. Lower glume surface puberulous. Lower glume apex obtuse. Upper glume oblong; 5–6 mm long; membranous; without keels; 7 -veined. Upper glume apex obtuse.

FLORETS Fertile lemma ovate; 7–9 mm long; membranous; purple; without keel; 7 -veined. Lemma apex acute. Palea 1 length of lemma. Palea surface scabrous. Palea apex obtuse. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 3. Anthers 3.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-temperate: China. Asia-tropical: Indo-China.

NOTES Arundinarieae. McClure 1996.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.