erigeron canadensis, convolvulus arvensis, artemisia vulgaris, carduus acanthoides, fallopia convolvulus, poa compressa, solidago canadensis, achillea millefolium, bromus tectorum, capsella bursa-pastoris, chenopodium album, digitaria sanguinalis, galinsoga parviflora, lactuca serriola, lepidium draba, linaria vulgaris, matricaria discoidea, poa annua, senecio vulgaris