atriplex oblongifolia, descurainia sophia, chenopodium album, achillea millefolium, capsella bursa-pastoris, cirsium arvense, erigeron canadensis, lolium perenne, tripleurospermum inodorum, amaranthus retroflexus, artemisia vulgaris, atriplex sagittata, bromus tectorum, chelidonium majus, convolvulus arvensis, fallopia convolvulus, melilotus officinalis, plantago major, poa annua, senecio vulgaris, setaria verticillata