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Project Name Data (Last Modified On 10/16/2012)
 

Flora Data (Last Modified On 10/16/2012)
Species TRISETUM DEYEUXIOIDES
PlaceOfPublication Rev. Gram. 1:102. 1829.
Synonym Avena deyeuxioides H.B.K. Nov. Gen. & Sp. 1:147. 1815. Trisetaria deyeuxioides Poir. in Lam. Encycl. Suppl. 5:366. 1817. Avena trichopodia Presl, Rel. Haenk. 1:254. 1830. Deyeuxia triflora Nees, Linnaea 19:691. 1847.
Description Slender lax perennial; culms erect or decumbent-spreading at the base, 70-120 cm. high, simple or sparingly branching; sheaths glabrous, usually longer than the internodes; ligule thin, truncate, 2-4 mm. long; blades 8-25 cm. long, 2-6 mm. wide, scabrous, sometimes pilose on the upper surface; panicles 10-25 cm. long, narrow, silvery, the short branches ascending, somewhat flexuous, spikelet bearing nearly to the base; spikelets 5-6 mm. long, 2-flowered; both glumes narrow, 1- nerved, subequal, nearly as long as the spikelet; lemmas narrowly lanceolate, glabrous, the hyaline tip bifid, the lower one 4.5-5 mm. long, the callus densely hairy, the hairs about 3 mm. long; awn 7-8 mm. long, fine, twisted below, attached about the middle; rachilla conspicuously hairy, the hairs at the summit of each segment much longer than the rest, reaching more than half the length of the lemma.
Distribution Grassy banks and thickets at medium altitudes, Mexico to Ecuador.
Specimen CHIRIQUI: El Boquete, Hitchcock 8253.
 
 
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