amaranthus retroflexus, chenopodium album, cirsium arvense, convolvulus arvensis, erigeron canadensis, lactuca serriola, solanum nigrum, sorghum halepense, echinochloa crus-galli, setaria viridis, datura stramonium, elymus repens, lolium perenne, reseda lutea, sonchus oleraceus, capsella bursa-pastoris, chenopodiastrum hybridum, cynodon dactylon, polygonum aviculare, portulaca oleracea, stellaria media