sisymbrium loeselii, matricaria chamomilla, capsella bursa-pastoris, chenopodium album, convolvulus arvensis, datura stramonium, erigeron canadensis, fumaria officinalis, papaver rhoeas, centaurea benedicta, centaurea solstitialis, cynodon dactylon, lolium perenne, galinsoga parviflora, erigeron annuus, geranium pusillum