populus canadensis, agrostis stolonifera, alopecurus pratensis, persicaria hydropiper, ranunculus repens, crataegus laevigata, angelica sylvestris, elymus repens, geum urbanum, glechoma hederacea, lathyrus pratensis, lotus corniculatus, phleum pratense, ranunculus acris, rumex obtusifolius, symphytum officinale, urtica dioica