carduus acanthoides, cynodon dactylon, persicaria lapathifolia, amaranthus hybridus, amaranthus retroflexus, arctium minus, artemisia annua, atriplex tatarica, chenopodium album, cirsium vulgare, echinochloa crus-galli, erigeron canadensis, hordeum murinum, malva sylvestris, melilotus officinalis, poa annua, polygonum aviculare, setaria pumila, trifolium repens, veronica polita, xanthium spinosum