Quackgrass is a perennial grass that is green to silver colored. Quackgrass grows throughout most of the United States, and it can be found growing in turfgrass, lawns and other landscaping.
Quackgrass may also be called creeping quackgrass. It is short with a continuous broad collar, and it has short hairs on the lower sheaths while the upper sheaths are smooth. The blades are rough on the upper side and smooth on the underside. Quackgrass is very hard to remove once it is established. It cannot be removed by hand because of well-developed rhizomes in the roots. It is most easily removed by professionals using post-emergent weed control.