chenopodium album, amaranthus powellii, amaranthus retroflexus, convolvulus arvensis, echinochloa crus-galli, helianthus annuus, arctium tomentosum, chenopodiastrum hybridum, cirsium arvense, elymus repens, plantago major, urtica dioica, atriplex sagittata, capsella bursa-pastoris, lactuca serriola, tripleurospermum inodorum