chenopodium album, erigeron canadensis, lactuca serriola, poa annua, senecio viscosus, galinsoga parviflora, polygonum aviculare, rorippa palustris, senecio vulgaris, agrostis stolonifera, crepis capillaris, hordeum murinum, medicago lupulina, persicaria lapathifolia, persicaria maculosa, plantago major, sisymbrium altissimum, sonchus oleraceus, acer pseudoplatanus, mycelis muralis, ulmus minor