digitaria sanguinalis, echinochloa crus-galli, sonchus oleraceus, erigeron canadensis, lipandra polysperma, setaria pumila, setaria viridis, solanum nigrum, ailanthus altissima, chaenorhinum minus, eragrostis minor, fallopia convolvulus, lysimachia arvensis, medicago lupulina, persicaria maculosa, poa angustifolia, polygonum aviculare, verbena officinalis, capsella bursa-pastoris, galium mollugo