cynodon dactylon, sonchus oleraceus, xanthium strumarium, saponaria officinalis, convolvulus arvensis, lactuca serriola, lolium perenne, medicago lupulina, polygonum aviculare, rorippa sylvestris, amorpha fruticosa, arenaria serpyllifolia, echinocystis lobata, erigeron canadensis, sorghum halepense, chenopodium album, melica transsilvanica, setaria viridis