hedera helix, acer pseudoplatanus, populus canadensis, quercus rubra, fraxinus excelsior, castanea sativa, corylus avellana, lonicera periclymenum, betula pendula, vinca minor, crataegus monogyna, galium aparine, prunus serotina, ribes uva-crispa, sambucus nigra, urtica dioica