amaranthus retroflexus, cirsium arvense, digitaria sanguinalis, echinochloa crus-galli, portulaca oleracea, setaria pumila, amaranthus hybridus, bromus sterilis, capsella bursa-pastoris, chenopodium album, erigeron canadensis, lolium perenne, plantago media, polygonum aviculare, senecio vulgaris, sinapis arvensis, sonchus asper, sorghum halepense, stellaria media