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Poaceae family

Echinochloa polystachya
(Kunth) Hitchcock
, Contr. U. S. Natl Herb. 22(3): 135, t. 26.  1920.
Bas.: Oplismenus polystachyus Kunth (1816).

Indigenous tall herb of cleared Pterocarpus forest in Cul de Sac swamp.
Antigua, Martinique, St. Lucia, Greater Antilles, North America, Mesoamerica, South America.