bromus hordeaceus, artemisia vulgaris, elymus repens, erigeron canadensis, lepidium draba, lepidium ruderale, lolium perenne, atriplex patula, capsella bursa-pastoris, cerastium holosteoides, chenopodium album, convolvulus arvensis, daucus carota, plantago major, senecio vulgaris, sonchus oleraceus, tripleurospermum inodorum, sisymbrium officinale