cirsium arvense, erigeron canadensis, amaranthus retroflexus, bromus arvensis, bromus tectorum, calamagrostis epigejos, chenopodium album, convolvulus arvensis, echinochloa crus-galli, elymus repens, lactuca serriola, polygonum aviculare, senecio vulgaris, setaria viridis, solanum nigrum, sonchus arvensis, sonchus oleraceus, tanacetum vulgare, tripleurospermum inodorum, xanthium orientale