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