plantago major, trifolium repens, erigeron canadensis, lepidium ruderale, matricaria discoidea, artemisia vulgaris, berteroa incana, capsella bursa-pastoris, chenopodium album, cirsium arvense, hordeum murinum, lolium perenne, medicago lupulina, persicaria maculosa, poa annua, poa compressa, poa pratensis, sonchus oleraceus