be, arr. halle-vilvoorde, acer pseudoplatanus, castanea sativa, quercus robur, fraxinus excelsior, sambucus nigra, corylus avellana, quercus rubra, lonicera periclymenum, populus canadensis, hedera helix, prunus serotina, urtica dioica, arum maculatum, glechoma hederacea, alnus glutinosa, hyacinthoides non-scripta, galanthus nivalis, sorbus aucuparia, lamium galeobdolon, silene dioica, rhododendron ponticum, circaea lutetiana, geum urbanum, ribes rubrum, polygonatum multiflorum, crataegus monogyna, athyrium filix-femina, dryopteris dilatata, galium aparine, heracleum sphondylium, ficaria verna, ranunculus repens, potentilla indica, fagus sylvatica, anemone nemorosa, angelica sylvestris, cardamine pratensis, prunus avium, filipendula ulmaria, primula elatior, poa trivialis, adoxa moschatellina, geranium robertianum, dryopteris filix-mas, betula pendula, robinia pseudoacacia, lathraea clandestina, teucrium scorodonia, arum italicum, alnus incana