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Urochloa plantaginea

Urochloa plantaginea (Link) R.D.Webster  
Family: Poaceae
Plantain Liverseed Grass, more...Plantain Signalgrass
[Brachiaria plantaginea Hitchcock, morePanicum leandri Trin., Panicum plantagineum Schum.]
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Jose Hernandez
  • FNA
  • Resources
J.K. Wipff, Rahmona A. Thompson. Flora of North America

Plants annual. Culms 20-100 cm, decumbent, geniculate, branching and rooting at the lower nodes; nodes glabrous. Sheaths mostly glabrous, except the margins ciliate, with papillose-based hairs; ligules 0.5-1.5 mm; blades 3-21 cm long, 6-20 mm wide, glabrous, bases subcordate to cordate, clasping the stems, margins sometimes ciliate basally. Panicles 6-25 cm long, 2-7 cm wide, with 3-8 spikelike primary branches in 2 ranks; primary branches 2-11 cm, axes 1-1.5 mm wide, flat, margins scabrous; secondary branches absent; pedicels shorter than the spikelets, glabrous or scabrous. Spikelets (4)4.5-6 mm long, 1.9-2.2 mm wide, solitary, appressed to the branch axes, in 2 rows. Glumes separated by an internode of about 0.5 mm; lower glumes 1.5-2.5 mm, to 1/3 as long as the spikelets, broadly ovate, glabrous, 9-11-veined; upper glumes 3-4.2 mm, glabrous, 7(-9)-veined, without evident cross venation; lower florets sterile; lower lemmas 3-4.2 mm, glabrous, 5-veined; lower paleas present; upper lemmas 2.7-3.6 mm long, 1.5-2 mm wide, apices rounded; anthers 0.7-1 mm. Caryopses 2-2.5 mm. 2n = 36, 72.

Urochloa plantaginea, native to western and central Africa, is found from the southern United States to Argentina. It is now established in the southeastern United States, growing in loose sand and loam soils. Although considered a weed in the Flora area, Sendulsky (1978) stated that it provided good forage.

Hall (1978) reported Urochloa oligobrachiata (Pilg,) Kartesz [= Brachiaria platytaenia Stapf] in Florida. This report was based on one collection, but the voucher specimen has not been verified. Urochloa oligobrachiata is similar to U. plantaginea, but differs in having acute to acuminate lower glumes and shortly awned upper lemmas. It is native to western Africa.

Urochloa plantaginea
Open Interactive Map
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Frank Reichenbacher
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Jose Hernandez
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Jose Hernandez
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Jose Hernandez
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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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University of Florida Herbarium
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