brassica nigra, bidens tripartita, capsella bursa-pastoris, chenopodium album, convolvulus arvensis, descurainia sophia, erigeron canadensis, galinsoga parviflora, lactuca serriola, malva sylvestris, matricaria chamomilla, persicaria maculosa, rorippa sylvestris, sonchus arvensis, tripleurospermum inodorum, veronica polita