senecio viscosus, fallopia convolvulus, apera spica-venti, asparagus officinalis, bromus hordeaceus, cirsium arvense, epilobium ciliatum, erigeron canadensis, matricaria discoidea, sisymbrium altissimum, spergula arvensis, tripleurospermum inodorum, viola arvensis, chenopodium album, teesdalia nudicaulis