helianthus tuberosus, elymus repens, artemisia vulgaris, calamagrostis epigejos, cirsium arvense, daucus carota, echinochloa crus-galli, erigeron canadensis, lipandra polysperma, medicago sativa, plantago major, rubus caesius, tanacetum vulgare, trifolium repens, tripleurospermum inodorum, urtica dioica, amaranthus powellii, rumex obtusifolius