carduus acanthoides, artemisia vulgaris, chenopodium album, persicaria lapathifolia, sonchus arvensis, abutilon theophrasti, amaranthus retroflexus, arctium lappa, atriplex patula, cichorium intybus, cirsium arvense, convolvulus arvensis, daucus carota, erigeron canadensis, helianthus annuus, helminthotheca echioides, lactuca serriola, polygonum aviculare, sorghum halepense