erigeron canadensis, matricaria discoidea, poa annua, senecio viscosus, apera spica-venti, epilobium ciliatum, fallopia convolvulus, holcus lanatus, lactuca serriola, papaver dubium, senecio vulgaris, sisymbrium altissimum, tripleurospermum inodorum, chenopodium album, fumaria officinalis, matricaria chamomilla, poa trivialis