small seed of any of various annual cereal grasses especially Setaria italica | low-growing perennial having leaves silvery beneath; northern United States, Europe, Asia |
any of various small-grained annual cereal and forage grasses of the genera Panicum, Echinochloa, Setaria, Sorghum, and Eleusine | annual weedy grass used for hay |
| 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 |