hordeum murinum, bromus tectorum, bromus sterilis, arctium minus, artemisia vulgaris, atriplex patula, berteroa incana, bromus hordeaceus, capsella bursa-pastoris, chenopodiastrum hybridum, dactylis glomerata, descurainia sophia, elymus repens, erigeron annuus, erigeron canadensis, galinsoga parviflora, geranium pusillum, lepidium ruderale, lolium perenne, lysimachia arvensis, senecio viscosus, sisymbrium officinale, tripleurospermum inodorum