atriplex sagittata, arctium tomentosum, artemisia vulgaris, atriplex patula, chenopodium album, descurainia sophia, echinochloa crus-galli, elymus repens, equisetum arvense, erigeron canadensis, fallopia convolvulus, helianthus tuberosus, lactuca serriola, medicago lupulina, tripleurospermum inodorum, vicia hirsuta