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(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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AXONOPUS COMPRESSUS
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PlaceOfPublication
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Ess. Agrost. 12. 1812.
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Synonym
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Milium compressurn Swartz, Prodr. Veg. Ind. Occ. 24. 1788. Paspalum platicaulon Poir. in Lam. Encycl. Suppl. 5:34. 1804. Agrostis coumpressa Poir. in Lam. Encycl. Suppl. 1:259. 1810. Paspalum cormpressum Raspail, Ann. Sci. Nat. 5:301. 1825. Paspalum laticulmum Spreng. Syst. Veg. 1:245. 1825. Digitaria platicaulis Desv. Opusc. 62. 1831. Paspalum filostachyum A. Rich. ex Steud. Syn. P1. Glum. 1:20. 1854. Anastrophus compressus Schlecht. ex Doell in Mart. Fl. Bras. 22:102. 1877. Paspalum raunkiaerii Mez, Repert. Sp. Nov. (Fedde) 15:60. 1917.
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Description
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Stoloniferous perennial; culms in small tufts, 15-60 cm. high, compressed, erect or ascending, the nodes appressed-pubescent or sometimes bearded; stolons long, leafy, with short blades; sheaths keeled, glabrous, pubescent on the collar, the margins hyaline, glabrous or ciliate, the lower ones relatively short, much longer than the internodes, the upper one elongate; blades 5-15 cm. long, or those of the innovations elongate, 6-10 mm. wide, rarely as little as 4 mm. or as much as 12 mm. wide, obtuse, rounded at the base, glabrous, the margins usually ciliate at least toward the base; inflorescences terminal and axillary from the upper sheaths, composed of 2-5 ascending or spreading racemes, 3-9 cm. long, the upper two conjugate, the others a short distance below; spikelets 2-2.5 mm. long (rarely 3 mm.), the second glume and sterile lemma pointed beyond the fruit, glabrous or sparsely pubescent on the internerves; fruit 1.5-2 mm. long, oblong, minutely roughened.
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Distribution
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Open ground, fields, open woods and brushy slopes, usually in moist ground, Florida and the West Indies to Argentina; also in warmer parts of the Old World.
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Specimen
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CHIRIQUI: Dolega, Hitchcock 834I. COCLE: Aguadulce, Pittier 493I. CANAL ZONE: Barro Colorado Island, Bailey d Bailey 497; Gamboa, Standley 28485; Juan Mina, Piper 52II; Bartlett d Lasser I6495; Culebra, Pittier 3742; Hitchcock 79I2, 79I3; Summit, Standley 25702; Ancon, Hitchcock I9892, I9893; Ancon Hill, Piper 52I2; Balboa, Stand- ley 2565o, 26476; Piper 52I4. PANAMA: Chepo, Pittier 4452, 4634; Taboga Island, Hitchcock 8063; Chagres Valley, Pittier 3462.
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