witchgrass
/ˈwɪtʃˌɡræs/
noun
- A common weed with creeping stems that spreads quickly and is difficult to remove from lawns and gardens.
- The gardener recommended a special herbicide to control witchgrass.
- She spent the whole afternoon pulling witchgrass out of the vegetable patch.
- Witchgrass took over the flower bed after the heavy rains.