chenopodium album, amaranthus hybridus, bromus sterilis, chenopodium ficifolium, cynodon dactylon, erigeron canadensis, hordeum murinum, lepidium draba, lolium perenne, poa bulbosa, tribulus terrestris, amaranthus retroflexus, artemisia vulgaris, plantago major, polygonum aviculare, setaria viridis, xanthium spinosum