euphorbia peplis, capsella bursa-pastoris, cerastium fontanum, chenopodium album, convolvulus arvensis, elymus repens, erigeron canadensis, hordeum murinum, lepidium draba, medicago lupulina, oxalis stricta, poa annua, setaria viridis, sisymbrium officinale, solanum nigrum, sonchus arvensis, sonchus oleraceus, stellaria media, veronica polita