polygonum aviculare, capsella bursa-pastoris, chenopodium album, convolvulus arvensis, lolium multiflorum, persicaria maculosa, rumex acetosa, setaria viridis, bidens tripartita, cirsium arvense, euphorbia falcata, fallopia convolvulus, helminthotheca echioides, papaver rhoeas, plantago lanceolata, ranunculus arvensis, ranunculus bulbosus