low-growing perennial having leaves silvery beneath; northern United States, Europe, Asia | small seed of any of various annual cereal grasses especially Setaria italica |
annual weedy grass used for hay | any of various small-grained annual cereal and forage grasses of the genera Panicum, Echinochloa, Setaria, Sorghum, and Eleusine |
coarse annual grass having fingerlike spikes of flowers; native to Old World tropics; a naturalized weed elsewhere | |
annual having the stem beset with curved prickles; North America and Europe and Asia | |