Aristida cognata Trin. & Rupr.
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Authority
Acevedo-Rodríguez, Pedro & collaborators. 1996. Flora of St. John, U.S. Virgin Islands. Mem. New York Bot. Gard. 78: 1-581.
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Family
Poaceae
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Scientific Name
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Description
Species Description - Perennial herb; culms 20-50 cm tall, ascending below from a knotty base. Leaves narrow; ligules 0.1-0.3 mm long, minutely ciliate; blades 50-150 x 0.5-1.5 mm, involute, with scattered, villous hairs, 2-4 mm long near base or sheath apex. Panicles 4- 15 x 1-4 cm, narrowly spreading. Spikelets 6-9 mm long, excluding the awns; glumes 4-8 mm long, the upper glume longer; lemmas 5-7 mm long, terete, the callus hairs about 0.5 mm long, the apex with elongate column or beak about 1 mm long, the awns 4-18 mm long.
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Distribution
Occasional in rocky soils and on dry hillsides. Rosenberg (E3003), Bass Gut (Eggers s.n.). Also on St. Thomas; Cuba, Hispaniola, Lesser Antilles, and Venezuela.
Venezuela South America| Saint John Virgin Islands of the United States South America| West Indies| West Indies| Cuba South America| Saint Thomas Virgin Islands of the United States South America|