atriplex sagittata, bassia scoparia, ailanthus altissima, artemisia vulgaris, atriplex patula, echium vulgare, erigeron canadensis, lolium perenne, plantago lanceolata, plantago major, poa angustifolia, polygonum aviculare, rosulabryum capillare, trifolium repens, arctium lappa, mercurialis annua, poa compressa, sisymbrium orientale