amaranthus retroflexus, chenopodium album, bromus tectorum, elymus repens, erigeron canadensis, tripleurospermum inodorum, artemisia vulgaris, atriplex patula, calamagrostis epigejos, capsella bursa-pastoris, cirsium arvense, hordeum murinum, lepidium ruderale, pastinaca sativa, plantago major, setaria verticillata, silene latifolia, thlaspi arvense