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Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Panicum calocarpum
HABIT Annual; caespitose. Culms erect; 50–75 cm long; 4–5 -noded. Ligule an eciliate membrane. Leaf-blades 3–13 cm long; 2–3 mm wide.
INFLORESCENCE Inflorescence a panicle.
Panicle open; oblong; effuse; 8–12 cm long. Primary panicle branches 3–8 cm long. Panicle branches capillary.
Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; 4–15 mm long.
FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; obtuse; 2.5 mm long; falling entire.
GLUMES Glumes similar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.75–0.8 length of spikelet; membranous; without keels; 3 -veined. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; 5 -veined. Upper glume apex obtuse.
FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 5 -veined; obtuse. Fertile lemma elliptic; dorsally compressed; 1.5 mm long; indurate; pallid; without keel. Lemma surface striate. Lemma margins involute. Lemma apex acute; papillose. Palea involute; indurate.
DISTRIBUTION Africa: west tropical.
NOTES Paniceae. FWTA.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.