lepidium didymum, lycopsis arvensis, matricaria discoidea, persicaria maculosa, polygonum aviculare, sisymbrium officinale, solanum nigrum, artemisia vulgaris, galinsoga quadriradiata, sonchus asper, chenopodium album, cirsium arvense, cirsium vulgare, elymus repens, erigeron canadensis, hyoscyamus niger, lolium perenne, rumex obtusifolius, senecio viscosus, senecio vulgaris, sonchus oleraceus, tripleurospermum inodorum, heracleum sphondylium, melilotus officinalis