echium vulgare, ajuga chamaepitys, arctium lappa, berteroa incana, carduus acanthoides, cirsium vulgare, convolvulus arvensis, daucus carota, erigeron canadensis, euphorbia helioscopia, lotus corniculatus, melilotus albus, melilotus officinalis, plantago lanceolata, polygonum aviculare, reseda lutea, scleranthus annuus, setaria pumila, sinapis arvensis