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