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.

Panicum fluviicola

HABIT Perennial; caespitose. Butt sheaths glabrous. Culms erect; (30–)60–230 cm long; (2–)3.5–7 mm diam. Ligule a ciliolate membrane. Leaf-blades (13–)25–50 cm long; 3–12 mm wide. Leaf-blade apex attenuate; hardened.

INFLORESCENCE Inflorescence a panicle.

Panicle open; oblong; 10–45 cm long.

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(–3) mm long; falling entire.

GLUMES Glumes similar; exceeding apex of florets; thinner than fertile lemma; recurved at apex. Lower glume ovate; 0.5–0.7 length of spikelet; membranous; without keels; 3–5 -veined. Lower glume primary vein scabrous. Lower glume apex acuminate; muticous, or mucronate. Upper glume ovate; membranous; without keels; 5 -veined. Upper glume apex acute to acuminate.

FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 1.2–1.3 length of fertile lemma; 1 length of spikelet; membranous; 3 -veined; acute to acuminate. Fertile lemma oblong; dorsally compressed; 1.5–2 mm long; indurate; pallid; shiny; without keel; 5 -veined. Lemma margins involute. Lemma apex obtuse. Palea involute.

DISTRIBUTION Africa: west tropical, west-central tropical, northeast tropical, east tropical, southern tropical, and south.

NOTES Paniceae. FTEA.

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