chenopodium album, cynodon dactylon, hordeum murinum, polycarpon tetraphyllum, amaranthus deflexus, avena barbata, bromus hordeaceus, bromus sterilis, calendula arvensis, chondrilla juncea, convolvulus arvensis, erigeron canadensis, lagurus ovatus, lolium perenne, lysimachia arvensis, malva sylvestris, papaver rhoeas, polygonum aviculare, rumex pulcher, setaria viridis, sonchus asper