atriplex sagittata, atriplex patula, lactuca serriola, sonchus oleraceus, chenopodium album, datura stramonium, erigeron canadensis, fallopia convolvulus, matricaria discoidea, medicago lupulina, persicaria lapathifolia, plantago major, poa palustris, rumex crispus, sonchus arvensis, tripleurospermum inodorum, urtica dioica