Plants annual. Culms 15-70 cm, erect; nodes glabrous or pubescent.
Sheaths pubescent, sometimes sparsely so; ligules 1-1.9 mm; blades
to 35 cm long, 1.9-16.2 mm wide, flat, sparsely pubescent on both surfaces, margins
ciliate basally. Panicles terminal, with 2-8 racemosely arranged branches;
branches 2-6.4 cm, diverging to erect; branch axes 0.9-1.6 mm wide,
winged, glabrous, margins scabrous, terminating in a spikelet. Spikelets
2.5-3.5 mm long, 2.4-3 mm wide, paired, appressed to the branch axes, suborbicular,
stramineous. Lower glumes absent; upper glumes and lower lemmas
1.9-2.1 mm, ovate, winged, 1-veined, margins ciliate-lacerate; upper florets
1.7-1.9 mm, stramineous. Caryopses 0.9-1.1 mm, orbicular, white. 2n
Paspalum fimbriatum has probably been introduced into the United States.
Its primary range extends from southern Mexico to Colombia, Venezuela, and French
Guiana. In the Flora region, it grows in disturbed areas of Florida.