barn grass


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Noun1.barn grass - a coarse annual panic grassbarn grass - a coarse annual panic grass; a cosmopolitan weed; occasionally used for hay or grazing
Echinochloa, genus Echinochloa - annual or perennial succulent grasses of warm regions
millet - any of various small-grained annual cereal and forage grasses of the genera Panicum, Echinochloa, Setaria, Sorghum, and Eleusine