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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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CHLORIS RADIATA
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PlaceOfPublication
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Prodr. Veg. Ind. Occ. 26. 1788.
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Synonym
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Agrostis radiata L. Syst. Nat. ed. 10. 2:873. 1759. Cynosurus scoparius Lam. Encycl. 2:188. 1786. Chloris gracilis Durand, Chlor. Sp. 10. 1808. Chloris durandiana Schult. Mant. 2:341. 1824. Chloris glaucescens Steud. Syn. P1. Glum. 1:206. 1854. Gymnopogon radiata Parodi, Physis 4:180. 1918.
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Description
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Perennial; culms erect or decumbent at the base, branching, 15-60 cm. high, distinctly flattened; sheaths compressed-keeled, longer than the internodes, glabrous; blades thin, flat, mostly 4-10 cm. long, or the lower ones sometimes longer, smooth or scabrous, sometimes sparsely pilose; ligule 0.5 mm. long, minutely ciliate; spikes 5-15 (mostly more than 10), 4-8 cm. long, slender, straight or flexuous, subdigi- tate or in 2 or 3 approximate fascicles, ascending or spreading; spikelets appressed; glumes acuminate, 1-nerved, the first 1-2 mm. long, the second 2-3 mm. long, glabrous, or scabrous on the keel; fertile floret about 2.5-3 mm. long, narrow, the callus bearded, the lemma glabrous on the back, short-ciliate on the upper part of the margins, the awn 5-10 mm. long, scaberulous; rudiment very slender, 1 mm. long, glabrous, the awn 4-6 mm. long, scaberulous.
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Distribution
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Roadsides, grassy plains, and waste places, Mexico and the West Indies to Bolivia and Argentina.
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Specimen
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BOCAS DEL TORO: Laguna de Chiriqui, Hart 66. CHIRIQUI: David, Hitchcock 8380. CANAL ZONE: Toro Point, Hitchcock 8053; Gatuin, Standley 273i8; Frijoles, Killip 4296; Barro Colorado Island, Standley 4II25; Obispo, Standley 3I788; Gamboa, Standley 28350; Culebra, Hitchcock 7894; Summit, Standley 30082; Balboa, Standley 25584, 2646I. PANAMA: Taboga Island, Hitchcock 8073.
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