cyclachaena xanthiifolia, bromus japonicus, amaranthus retroflexus, artemisia annua, artemisia vulgaris, atriplex tatarica, bassia scoparia, carduus acanthoides, chenopodium album, conium maculatum, descurainia sophia, elymus repens, erigeron canadensis, hordeum murinum, lactuca serriola, lolium perenne