symphyotrichum ciliatum, echinochloa crus-galli, achillea collina, amaranthus albus, artemisia annua, bidens cernuus, bromus commutatus, centaurea diffusa, chenopodium album, cichorium intybus, daucus carota, erigeron canadensis, galinsoga parviflora, inula britannica, lolium perenne, lotus tenuis, medicago lupulina, polygonum aviculare, setaria pumila, sonchus arvensis, trifolium fragiferum, tripleurospermum inodorum, xanthium strumarium