achillea virescens, centaurea cyanus, chenopodium album, cirsium arvense, daucus carota, erigeron annuus, geranium pusillum, lactuca serriola, lysimachia arvensis, matricaria chamomilla, medicago sativa, myosotis arvensis, papaver rhoeas, persicaria maculosa, ranunculus repens, scandix pecten-veneris, senecio vulgaris, silene latifolia, verbascum thapsus