hordeum murinum, lolium perenne, poa pratensis, capsella bursa-pastoris, poa annua, acer negundo, arctium lappa, chelidonium majus, erigeron annuus, galeopsis speciosa, geranium sibiricum, geum urbanum, lactuca serriola, medicago sativa, plantago major, polygonum aviculare, sisymbrium officinale, stellaria media, trifolium repens, viola odorata