symphyotrichum ciliatum, achillea collina, agrostis stolonifera, amaranthus blitoides, ambrosia artemisiifolia, centaurea diffusa, chenopodium album, convolvulus arvensis, cyclachaena xanthiifolia, daucus carota, echinochloa crus-galli, elymus repens, erigeron canadensis, hordeum geniculatum, inula britannica, lactuca serriola, lolium perenne, lotus tenuis, medicago lupulina, melilotus officinalis, oxybasis urbica, plantago major, poa annua, polygonum aviculare, puccinellia distans, setaria pumila, trifolium fragiferum, tripleurospermum inodorum, xanthium strumarium