Nutsedge (yellow) is a perennial sedge which is a pest in many cropping systems and lawn areas. It spreads rapidly by means of vigorous rhizomes. In August a nut is formed at the end of the rhizome which overwinters and starts the plant next year. It is apparently not a strong competitor but can become quite thick. The sedges are identified by having a triangular stem. Control measures are available in most situations. A related plant, purple nutsedge (Cyperus rotundus), is not present in New Jersey. It has nutlets in chains on the rhizome and is much more difficult to control.
Photo by Dr. John Meade, weed scientist emeritus
Rutgers NJAES Cooperative Extension
Photo by Dr. John Meade, weed scientist emeritus
Rutgers NJAES Cooperative Extension