be, arr. oudenaarde, acer pseudoplatanus, fraxinus excelsior, sambucus nigra, corylus avellana, quercus robur, hedera helix, populus canadensis, arum maculatum, urtica dioica, glechoma hederacea, castanea sativa, heracleum sphondylium, prunus avium, lamium galeobdolon, ficaria verna, polygonatum multiflorum, crataegus monogyna, adoxa moschatellina, silene dioica, primula elatior, galanthus nivalis, ribes rubrum, galium aparine, alnus glutinosa, geum urbanum, quercus rubra, lonicera periclymenum, anemone nemorosa, circaea lutetiana, carpinus betulus, angelica sylvestris, ulmus minor, cornus sanguinea, viburnum opulus, filipendula ulmaria, hyacinthoides non-scripta, stachys sylvatica, sorbus aucuparia, ranunculus repens, poa trivialis, prunus serotina, robinia pseudoacacia, alnus incana, athyrium filix-femina, fagus sylvatica, geranium robertianum, humulus lupulus, allium ursinum, symphytum officinale, arum italicum