amaranthus retroflexus, ambrosia artemisiifolia, aristolochia clematitis, artemisia vulgaris, carduus acanthoides, chenopodium album, convolvulus arvensis, daucus carota, elymus repens, erigeron canadensis, galinsoga parviflora, inula britannica, lactuca serriola, lactuca viminea, lolium perenne, poa pratensis, polygonum aviculare, sambucus ebulus, setaria pumila, sonchus oleraceus, symphytum officinale, tanacetum vulgare, urtica dioica, verbena officinalis