text: chenopodium album, erigeron canadensis, hirschfeldia incana, lipandra polysperma, sisymbrium officinale, crepis capillaris, galium aparine, lapsana communis, malva sylvestris, papaver rhoeas, poa annua, senecio vulgaris, sonchus oleraceus, verbena officinalis, hordeum murinum, kickxia elatine