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 by Dr. John Meade, weed scientist emeritus
Rutgers NJAES Cooperative Extension
Photo by Dr. John Meade, weed scientist emeritus
Rutgers NJAES Cooperative Extension