agrostis stolonifera, amorpha fruticosa, artemisia scoparia, convolvulus arvensis, cynodon dactylon, equisetum palustre, erigeron canadensis, gratiola officinalis, juncus compressus, medicago lupulina, oenothera biennis, ranunculus repens, rorippa sylvestris, rumex conglomeratus, trifolium campestre, trifolium echinatum, xanthium orientale