be, arr. halle-vilvoorde, fraxinus excelsior, sambucus nigra, acer pseudoplatanus, galanthus nivalis, corylus avellana, quercus robur, populus canadensis, hedera helix, quercus rubra, arum maculatum, urtica dioica, glechoma hederacea, ribes rubrum, castanea sativa, heracleum sphondylium, alnus glutinosa, prunus serotina, potentilla indica, lamium galeobdolon, silene dioica, primula elatior, galium aparine, alnus incana, circaea lutetiana, ficaria verna, polygonatum multiflorum, prunus avium, geum urbanum, viburnum opulus, crataegus monogyna, symphytum officinale, angelica sylvestris, robinia pseudoacacia, filipendula ulmaria, arum italicum, adoxa moschatellina, humulus lupulus, anemone nemorosa, symphoricarpos albus, pulmonaria officinalis, allium ursinum, cornus sanguinea, lonicera periclymenum, stachys sylvatica, cardamine pratensis, carpinus betulus, sorbus aucuparia, ranunculus repens, athyrium filix-femina, aegopodium podagraria