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(Last Modified On 10/12/2012)
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(Last Modified On 10/12/2012)
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Species
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BOUTELOUA AMERICANA
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PlaceOfPublication
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Proc. Acad. Phila. 1891:3 06. 1891.
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Synonym
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Aristida americana L. Syst. Nat. ed. 10. 2:879. 1759. Aristida antillarum Poir. in Lam. Encycl. Suppl. 1:451. 1810. Bouteloua litigiosa Lag. Gen. & Sp. Nov. 5. 1816. Chaetaria antillarum Beauv. ex Roem. & Schult. Syst. Veg. 2:395. 1817. Atheropogon antillarum Spreng. Syst. Veg. 1:294. 1825. Aristida subbiflora Steud. Syn. P1. Glum. 1:138. 1854. Eutriana antillarum Steud. Syn. P1. Glum. 1:217. 1854. Bouteloua elatior Griseb. Fl. Brit. W. Ind. 537. 1864. Atheropogon americanus Fourn. Mex. P1. 2:139. 18 86. Aristida adscensionis var. americana Kuntze, Rev. Gen. 33:340. 1898.
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Description
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Perennial; culms rather slender, branching, decumbent, sometimes prostrate- spreading, 30-60 cm. -high; sheaths glabrous, much shorter than the internodes; ligule very short, ciliate; blades 5-20 cm. long, 1-3 mm. wide, the margins scabrous and papillose or papillose-pilose; spikes 4-10, 1-4 cm. long, linear, as- cending or spreading; glumes acuminate, the first 3-4 mm. long, the second slightly broader, 4-5 mm. long, glabrous; fertile floret 4-5 mm. long, the lemma acuminate, glabrous, the callus densely hairy on the sides, the central awn terminal, 2-3 mm. long, the lateral ones about 1.5 mm. long; rudiment reduced to 3 scabrous awns, 8-10 mm. long.
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Distribution
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Dry rocky hil-ls, open ground and waste places, Honduras and the West Indies to Brazil.
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Specimen
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CANAL ZONE: Ancon Hill, Killip 42I7. PANAMA: Panama', Hitchcock 8409; Las Sabanas, Standley 25844; Killip 4035; Bella Vista, Standley 25360.
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