tussilago farfara, stellaria media, arctium lappa, artemisia vulgaris, atriplex oblongifolia, cirsium arvense, convolvulus arvensis, daucus carota, echinochloa crus-galli, elymus repens, erigeron canadensis, lactuca serriola, polygonum aviculare, solanum nigrum, sonchus arvensis, sonchus asper, tripleurospermum inodorum