symphyotrichum ciliatum, artemisia annua, atriplex prostrata, erigeron canadensis, polygonum aviculare, trifolium fragiferum, carduus acanthoides, cichorium intybus, echinochloa crus-galli, elymus repens, inula britannica, lolium perenne, medicago lupulina, onopordum acanthium, oxybasis urbica, persicaria lapathifolia, persicaria maculosa, plantago major, setaria pumila, sonchus arvensis, trifolium repens, tripleurospermum inodorum, xanthium strumarium