bromus tectorum, artemisia vulgaris, hordeum murinum, achillea millefolium, bromus sterilis, capsella bursa-pastoris, chenopodium album, dactylis glomerata, descurainia sophia, erigeron canadensis, lolium perenne, matricaria chamomilla, plantago lanceolata, plantago major, poa annua, tripleurospermum inodorum