Daisy fleabane is known also as white top. It is a winter annual or biennial. A serious problem in alfalfa, especially that grown for equine consumption. Those folks don't want to see the white and yellow flowers in their hay bales. Also a problem of pastures and similar areas.
Photo by Dr. John Meade, weed scientist emeritus
Rutgers NJAES Cooperative Extension
Photo by Dr. John Meade, weed scientist emeritus
Rutgers NJAES Cooperative Extension