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Paspalum quadrifarium

Paspalum quadrifarium Lam.  
Family: Poaceae
Tussock Crown Grass, more...Paja Colorada, Paja Manse, Tussock Paspalum
[Panicum lagascae var. quadrifarium (Lam.) Kuntze, morePaspalum ferrugineum Trin., Paspalum quadrifarium var. ferrugineum (Trin.) Herter, Paspalum quadrifarium var. majus Döll, Paspalum quadrifarium var. minus Döll]
Paspalum quadrifarium image
  • FNA
  • Resources
Charles M. Allen, David W. Hall. Flora of North America

Plants perennial; cespitose. Culms (50)100-180 cm, erect; nodes pubescent. Sheaths pubescent, margins extending into auricles; ligules 1-6.3 mm; blades 15-62 cm long, 4.9-6.1 mm wide, involute to flat, glabrous. Panicles terminal, with 15-44 racemosely arranged branches; branches 1.2-8.5 cm, straight, erect to ascending, lower branches longer than those above; branch axes 0.5-0.6 mm wide, narrowly winged, glabrous, margins scabrous, pubescent, terminating in a spikelet. Spikelets 2-2.5(3) mm long, 0.9-1.3 mm wide, paired, divergent to spreading from the branch axes, elliptic, brown to stramineous, often purple-tinged. Lower glumes usually absent, if present, to 0.9 mm, triangular; upper glumes shortly pubescent, 3-veined, purple-spotted, margins entire; lower lemmas glabrous or pubescent, lacking ribs over the veins, 3-veined, margins entire; upper florets 2.2-2.5 mm, white. 2n = 20, 30, 40.

Paspalum quadrifarium is native to Uruguay, Paraguay, Brazil, and Argentina. It is grown as an ornamental in Florida, but has also become established in disturbed habitats of the southeastern United States. It is considered a noxious weed in New South Wales, Australia.

Paspalum quadrifarium
Open Interactive Map
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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University of Florida Herbarium
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This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].

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