cirsium arvense, amaranthus retroflexus, convolvulus arvensis, portulaca oleracea, atriplex patula, capsella bursa-pastoris, chenopodium album, galinsoga parviflora, poa annua, stellaria media, artemisia vulgaris, carduus acanthoides, chenopodiastrum hybridum, mercurialis annua, sinapis arvensis, urtica urens, daucus carota, erodium cicutarium, filago arvensis, papaver rhoeas, silene vulgaris, tripleurospermum inodorum