senecio inaequidens, melilotus albus, reseda alba, trifolium pratense, artemisia vulgaris, daucus carota, erigeron sumatrensis, poa annua, setaria viridis, symphyotrichum squamatum, amaranthus retroflexus, medicago sativa, picris hieracioides, polygonum aviculare, rumex crispus, sonchus tenerrimus