sisymbrium altissimum, hordeum murinum, artemisia vulgaris, papaver dubium, veronica arvensis, vicia hirsuta, acer platanoides, agrostis capillaris, arabidopsis thaliana, capsella bursa-pastoris, cerastium semidecandrum, equisetum arvense, erigeron canadensis, oenothera biennis, poa annua, poa compressa, achillea millefolium, hypericum perforatum, sonchus oleraceus