convolvulus arvensis, anthemis cotula, chenopodium album, persicaria maculosa, amaranthus retroflexus, capsella rubella, cynodon dactylon, elymus repens, erigeron canadensis, fumaria officinalis, lamium purpureum, papaver rhoeas, polygonum aviculare, pteridium aquilinum, setaria viridis, silene vulgaris, urtica urens