artemisia vulgaris, elymus repens, tripleurospermum inodorum, arctium lappa, artemisia tournefortiana, erigeron canadensis, melilotus officinalis, poa compressa, tussilago farfara, chenopodium album, achillea millefolium, amaranthus retroflexus, arctium tomentosum, atriplex sagittata, calamagrostis epigejos, carduus acanthoides, plantago major, sisymbrium loeselii, solidago canadensis, tanacetum vulgare, urtica dioica, lolium perenne, oenothera biennis, picris hieracioides, polygonum aviculare, reseda lutea, rumex crispus, silene latifolia, sonchus oleraceus