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