lactuca serriola, atriplex sagittata, urtica dioica, agrostis gigantea, amaranthus retroflexus, arctium tomentosum, artemisia vulgaris, capsella bursa-pastoris, carduus acanthoides, chenopodium album, erigeron canadensis, fallopia convolvulus, oxybasis glauca, poa palustris, sisymbrium altissimum, solanum nigrum, stellaria media, tripleurospermum inodorum