impatiens parviflora, cirsium arvense, erigeron annuus, lactuca serriola, poa trivialis, tussilago farfara, bidens frondosa, erigeron canadensis, fallopia convolvulus, galeopsis tetrahit, galium aparine, sonchus oleraceus, alliaria petiolata, arctium minus, artemisia vulgaris, cirsium vulgare, sinapis arvensis, tripleurospermum inodorum