be, arr. halle-vilvoorde, quercus robur, lonicera periclymenum, corylus avellana, fraxinus excelsior, acer pseudoplatanus, sorbus aucuparia, urtica dioica, polygonatum multiflorum, glechoma hederacea, fagus sylvatica, hedera helix, sambucus nigra, betula pendula, quercus rubra, prunus serotina, carpinus betulus, athyrium filix-femina, ranunculus repens, dryopteris carthusiana, anemone nemorosa, castanea sativa, geum urbanum, galium aparine, alnus glutinosa, galeopsis tetrahit, prunus avium, poa trivialis, juncus effusus, arum maculatum, holcus lanatus, populus canadensis, crataegus monogyna, silene dioica, holcus mollis, heracleum sphondylium, lamium galeobdolon, ficaria verna, dryopteris dilatata, frangula alnus, ribes rubrum, teucrium scorodonia, circaea lutetiana, hyacinthoides non-scripta, angelica sylvestris, moehringia trinervia, betula pubescens, cardamine pratensis, primula elatior, agrostis capillaris, stachys sylvatica