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(Last Modified On 10/22/2012)
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(Last Modified On 10/22/2012)
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Species
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HYPARRHENIA RUFA (Nees) Stapf
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PlaceOfPublication
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Fl. Trop. Afr. 9:304. 1919.
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Synonym
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Trachypogon rufus Nees, Agrost. Bras. 345. 1829. Andropogon rufus Kunth, Rev. Gram. 1: Suppl. XXXIX. 1830. Cymbopogon rufus Rendle, Cat. Afr. P1. Welw. 2:155. 1899.
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Description
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Perennial; culms erect in large dense clumps 1-2.5 m. high, rarely less, gla- brous; sheaths keeled toward the summit, glabrous or papillose-hirsute on the margins toward the summit and in the throat; ligule brown, membranaceous, 2-4 mm. long; blades linear, elongate, 2-8 mm. wide, glabrous or scaberulous, the margins sometimes scabrous; inflorescence 20-40 cm. long, loose and open, com- posed of several to numerous compound branches from the upper nodes; pairs of racemes terminating the ultimate branchlets, exserted from the narrow incon- spicuous spathes, the peduncles commonly 4-6 cm. long, flexuous, pilose; racemes 2-3 cm. long, reddish-brown, the rachis and sterile pedicels densely ciliate with rufous or sometimes yellowish hairs; sessile spikelets 3-4 mm. long; first glume acute or subobtuse, sparsely to densely covered with red hairs; awns 15-20 mm. long, twice-geniculate, brown, the lower segments tightly twisted, hispidulous; pedicellate spikelet as large as the sessile, acute, awnless.
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Distribution
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Cultivated as a forage grass, sometimes escaped, Guatemala to Venezuela and Brazil; Tropics of the Old World.
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Common
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Jaragua' Zacate jaragua'
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Specimen
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PANAMA: Chepo, Hunter & Allen 80.
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Project Name
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