noun
- a tall perennial grass that is considered a troublesome weed in agricultural areas
Usage: agricultural
Examples
- The farmer struggled to control the johnsongrass that was choking out his corn crop.
- Johnsongrass can grow up to eight feet tall if left unchecked.
- The herbicide was specifically designed to target johnsongrass without harming the soybeans.
- Many states classify johnsongrass as a noxious weed.
- The field was overrun with johnsongrass after years of neglect.
- Johnsongrass spreads rapidly through underground rhizomes.