quercus robur, hedera helix, sambucus nigra, prunus avium, urtica dioica, acer pseudoplatanus, alliaria petiolata, castanea sativa, crataegus monogyna, acer campestre, atrichum undulatum, circaea lutetiana, dicranella heteromalla, euonymus europaeus, fraxinus excelsior, geum urbanum, ilex aquifolium, ribes rubrum