lactuca serriola, daucus carota, cirsium arvense, cichorium intybus, carduus acanthoides, cirsium vulgare, cynodon dactylon, erigeron canadensis, agrostis gigantea, setaria pumila, apera spica-venti, galium verum, lysimachia arvensis, matricaria chamomilla, polygonum aviculare, vicia villosa, xanthium strumarium, capsella bursa-pastoris, chenopodium album