hordeum murinum, bromus arvensis, cynodon dactylon, polygonum aviculare, bromus hordeaceus, cichorium intybus, crepis setosa, erigeron canadensis, lactuca serriola, lepidium perfoliatum, lepidium ruderale, lolium perenne, malva pusilla, malva sylvestris, plantago major, sisymbrium officinale, verbena officinalis