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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 graciliflorum

HABIT Perennial; caespitose. Culms slender; 70–130 cm long. Ligule a ciliate membrane. Leaf-blades 14–35 cm long; 3–5 mm wide. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; oblong; 7–30 cm long; contracted about secondary branches. Primary panicle branches spreading. Panicle branches glabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 2–2.5 mm long; falling entire.

GLUMES Glumes similar; reaching apex of florets; thinner than fertile lemma; gaping. Lower glume ovate; 0.5–0.75 length of spikelet; membranous; without keels; 3(–5) -veined. Lower glume apex acuminate. Upper glume ovate; 1 length of spikelet; membranous; without keels; 5 -veined. Upper glume apex acuminate.

FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 5 -veined; acuminate. Fertile lemma oblong; dorsally compressed; 1.5–2 mm long; indurate; pallid; shiny; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.

DISTRIBUTION Africa: southern tropical.

NOTES Paniceae. FZ.

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