erigeron canadensis, senecio viscosus, lolium perenne, atriplex sagittata, bromus tectorum, plantago major, sisymbrium altissimum, bromus sterilis, capsella bursa-pastoris, chenopodium album, cirsium arvense, erysimum cheiranthoides, lactuca serriola, lepidium ruderale, poa annua, sonchus oleraceus, tripleurospermum inodorum