Quackgrass is the worst perennial grass we have. A slender, strong rhizome spreads it widely and it also produces seeds. The seed head resembles ryegrass. It has auricles and a crimp in the leaf near the tip in the shape of a W or M. Control is feasible in many crops but persistence is the key word. Our Canadian friends call it Couch grass.
![Photo of Quackgrass](images/large/quackgrass-full.jpg)
Photo by Dr. John Meade, weed scientist emeritus
Rutgers NJAES Cooperative Extension
![Photo of Quackgrass Seed Head](images/large/quackgrass-seedhead-full.jpg)
Photo by Dr. John Meade, weed scientist emeritus
Rutgers NJAES Cooperative Extension