solanum tuberosum, tussilago farfara, chenopodium album, elymus repens, galinsoga parviflora, gnaphalium uliginosum, sinapis arvensis, sonchus arvensis, artemisia vulgaris, centaurea cyanus, cirsium arvense, euphorbia helioscopia, galium aparine, matricaria discoidea, tripleurospermum inodorum