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