urtica dioica, arrhenatherum elatius, bromus sterilis, dactylis glomerata, elymus repens, populus canadensis, solidago canadensis, atriplex patula, chenopodium album, crepis biennis, daucus carota, echinochloa crus-galli, epilobium montanum, erodium cicutarium, euphorbia peplus, fallopia convolvulus, geum urbanum, lamium album, medicago lupulina, oenothera biennis, poa pratensis, polygonum aviculare, setaria viridis, silene latifolia, sisymbrium officinale, sonchus oleraceus, stellaria media