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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; caespitose. Butt sheaths persistent and investing base of culm; with compacted dead sheaths. Culms erect, or geniculately ascending; 30–100 cm long. Leaf-sheath auricles absent, or erect. Ligule an eciliate membrane; 2–8 mm long. Leaf-blades 3–40 cm long; 2–6 mm wide. Leaf-blade margins cartilaginous; crenate.
INFLORESCENCE Inflorescence a panicle.
Panicle spiciform; linear; 5–25 cm long. Primary panicle branches accrescent to a central axis; with sessile scars on axis. Panicle axis angular; bearing deciduous spikelet clusters.
Spikelets subtended by an involucre. Fertile spikelets sessile; 4–10 in the cluster. Companion sterile spikelets sessile; 4–10 in the cluster. Involucre composed of imperfect spikelets; oblong; 6–11 mm long; base obtuse; base pubescent.
STERILE SPIKELETS Companion sterile spikelets represented by single glumes; lanceolate; 6–11 mm long; as long as fertile; deciduous with the fertile. Companion sterile spikelet glumes free; coriaceous; 3–7 -veined; pilose to villous; acute, or acuminate, or setaceously attenuate; muticous.
FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 3–7 mm long; falling entire; deciduous with accessory branch structures.
GLUMES Glumes one the lower absent or obscure; reaching apex of florets; thinner than fertile lemma. Upper glume subulate; 3–6 mm long. Upper glume margins ciliate.
FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret oblong; 4–6 mm long; 1 length of spikelet; hyaline; 3–7 -veined; puberulous; ciliate on margins; bearing hairs 1 mm long; acute. Fertile lemma lanceolate; 4–6 mm long; cartilaginous; much thinner on margins; without keel; 3 -veined. Lemma surface scaberulous (above). Lemma margins flat; covering most of palea. Lemma apex acute. Palea cartilaginous; 1-keeled.
DISTRIBUTION Africa: west tropical, northeast tropical, east tropical, southern tropical, and south. Asia-temperate: western Asia and Arabia.
NOTES Paniceae. FTEA.
Please cite this publication as detailed in How to Cite Version: 27th January 2014.