lepidium ruderale, matricaria discoidea, persicaria lapathifolia, lolium perenne, plantago major, polygonum aviculare, atriplex patula, capsella bursa-pastoris, chaenorhinum minus, chenopodium album, erigeron acris, poa annua, rorippa islandica, rumex crispus, sisymbrium officinale, tripleurospermum inodorum