(Last Modified On 10/16/2012)
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(Last Modified On 10/16/2012)
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Species
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LEPTOCHLOA VIRGATA
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PlaceOfPublication
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Ess. Agrost. 71, 161, 166. P1. I5, f. I. 1812.
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Synonym
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Cynosurus virgatus L. Syst. Nat. ed. 10. 2:876. 1759. Festuca virgata Lam. Tabl. Encycl. 1:189. 1791. Eleusine virgata Pers. Syn. P1. 1:87. 1805. Chloris poaeformis H.B.K. Nov. Gen. & Sp. 1:169. 1816. Chloris digitaria H.B.K. Nov. Gen. & Sp. 1:168. 1816. Leptostachys digitaria G. Meyer, Prim. Fl. Esseq. 74. 1818. Leptostachys virgata G. Meyer, Prim. Fl. Esseq. 74. 1818. Leptochloa procera Nees, Syll. P1. Ratisb. 1:2. 1824. Cynodon virgatus Raspail, Ann. Sci. Nat. Bot. 5:302. 1825. Leptochloa digitaria Nees, Agrost. Bras. 433. 1829. Leptochloa procera var. major Brongn. in Duperrey, Bot. Voy. Coquille 22:48. 1830. Leptochloa procera var. minor Brongn. in Duperrey, Bot. Voy. Coquille 22:48. 1830. Leptochloa mutica Steud. Syn. P1. Glum. 1:208. 1854. Leptochloa virgata var. aristata Fourn. Mex. P1. 2:146. 1886. Leptochloa virgata var. intermedia Fourn. Mex. P1. 2:146. 1886. Leptochloa perennis Hack. Inf. E'st. Centr. Agron. Cuba 1:411. 1906.
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Description
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Perennial; culms tufted, erect or somewhat decumbent at the base, 30 cm. to more than 1 m. high; sheaths rounded, glabrous or nearly so; ligule 0.2-0.3 mm. long, minutely erose; blades 10-20 cm. long, 4-12 mm. wide, flat, acuminate, the margins scabrous; inflorescence drooping, 10-15 cm. long; spikes somewhat aggre- gate, slender, drooping, mostly 6-10 cm. long; spikelets 3- to 4-flowered, 2-3 mm. long; glumes similar, acute, the first 1.5 mm. long, the second a little longer; lemmas 1.5-2 mm. long, sparsely pilose on the margins, the tip blunt, often minutely lobed, awnless or rarely awned.
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Distribution
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Open ground along streams and ditches, also in brushy places, Texas, Florida, and the West Indies to Argentina.
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Specimen
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BOCAS DEL TORO: Laguna de Chiriqui, Hart 67, 76; Lincoln Creek, Carleton I90. CHIRIQUI: David, Hitchcock 8356. COLON: Palenque, Pittier 4136. CANAL ZONE: Toro Point, Hitchcock 8039; Fort Sherman, Standley 30926; Rio Pequeni, W1oodso, Allen d Seibert I629; Gatuncillo, Piper 5273; Frijoles, Standley 3I486; Barro Colorado Island, Kenoyer I3I; Gamboa, Standley 28529; Culebra, Hitchcock 79I8; Pittier 208I, 3440; Corozal, Killip 4250; Piper 5263; Ancon, Killip 4105; Balboa, Standley 2525I, 26459. PANAMA: Sambu' River, Pittier 5527; Taboga Island, Standley 27959.
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