| bristlegrass | (n) grasses of grasslands and woodlands having large gracefully arching spikes with long bristles beneath each spikelet, Syn. bristle grass |
| green bristlegrass | (n) European foxtail naturalized in North America; often a troublesome weed, Syn. bottle-grass, bottle grass, green foxtail, Setaria viridis, rough bristlegrass |
| yellow bristlegrass | (n) common weedy and bristly grass found in nearly all temperate areas, Syn. yellow foxtail, Setaria glauca, glaucous bristlegrass, yellow bristle grass |
| bristlegrass | n. grasses of grasslands and woodlands having large gracefully arching spikes with long bristles beneath each spikelet. |