amaranthus retroflexus, polygonum aviculare, ambrosia artemisiifolia, chenopodium album, convolvulus arvensis, erigeron canadensis, erigeron annuus, acer negundo, arctium lappa, chelidonium majus, diplotaxis muralis, hordeum murinum, lactuca serriola, setaria viridis, capsella bursa-pastoris, echinochloa crus-galli, geranium pusillum, humulus lupulus, inula britannica, ulmus minor