ambrosia artemisiifolia, atriplex patula, elymus repens, erigeron canadensis, polygonum aviculare, tripleurospermum inodorum, artemisia vulgaris, cichorium intybus, daucus carota, digitaria sanguinalis, echinochloa crus-galli, erigeron annuus, fallopia convolvulus, lactuca serriola, lipandra polysperma, plantago major, potentilla reptans, setaria pumila, sonchus asper, stellaria media, tussilago farfara