centaurea cyanus, polygonum aviculare, anthemis arvensis, bromus sterilis, centaurea scabiosa, chenopodium album, chondrilla juncea, convolvulus arvensis, lamium amplexicaule, lolium rigidum, neslia paniculata, papaver rhoeas, viola arvensis, atriplex patula, lactuca serriola, legousia speculum-veneris, vicia cracca