zea mays, digitaria ischaemum, raphanus raphanistrum, rumex acetosella, setaria pumila, setaria viridis, elymus repens, holcus mollis, persicaria lapathifolia, persicaria maculosa, bidens tripartita, fallopia convolvulus, oxalis stricta, persicaria hydropiper, polygonum aviculare, ranunculus repens