sisymbrium loeselii, artemisia vulgaris, descurainia sophia, lepidium ruderale, achillea millefolium, arctium tomentosum, capsella bursa-pastoris, erigeron canadensis, erysimum cheiranthoides, matricaria discoidea, plantago lanceolata, plantago major, poa annua, poa pratensis, sonchus arvensis, trifolium repens, urtica dioica