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