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(Last Modified On 10/18/2012)
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(Last Modified On 10/18/2012)
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Species
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PANICUM HAENKEANUM
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PlaceOfPublication
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Rel. Haenk. 1:304. 1830.
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Synonym
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Panicum costaricense Hack. Oesterr. Bot. Zeitschr. 51:428. 1901.
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Description
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Perennial; culms relatively slender, straggling, sparingly to rather freely branching, sometimes rooting at the lower nodes, mostly about 1 m. long, pilose at least below the nodes; sheaths usually much shorter than the internodes, papillose-hispid especially toward the summit, densely pubescent on the collar; blades 5-10 cm. long, 6-12 mm. wide, acuminate, somewhat narrowed toward the more or less rounded base, pilose on the lower surface especially along the midnerve, papillose-hispid on the upper surface; panicles 10-15 cm. long, oblong, the slender flexuous spreading branches in rather distant fascicles; spikelets 2.3-2.5 mm. long on long or rather short capillary flexuous pedicels, sparsely pilose on the margins of the glumes and sterile lemma, the first glume about half as long as the spikelet; fruit 1.7 mm. long, smooth and shining.
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Distribution
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Open woods and usually moist grassy banks, southern Mexico to Venezuela.
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Specimen
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CHIRIQUI: San Felix, Pittier 5247. CANAL ZONE: Culebra, Hitchcock 9I68; Pedro Miguel, Killip 4309; Ancon Hill, Piper 5266; Killip 4i83; between Corozal and Ancon, Pittier 2I69, 2636; between Panama and Corozal, Hitchcock 9206. PANAMA: Pacora, Killip 4237; Aguarubia, Killip 4282; Campana, Allen I3I7.
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