be, arr. halle-vilvoorde, acer pseudoplatanus, castanea sativa, corylus avellana, quercus robur, lonicera periclymenum, fraxinus excelsior, quercus rubra, fagus sylvatica, hedera helix, polygonatum multiflorum, athyrium filix-femina, anemone nemorosa, sorbus aucuparia, sambucus nigra, lamium galeobdolon, prunus avium, carpinus betulus, prunus serotina, alnus glutinosa, betula pendula, pteridium aquilinum, dryopteris dilatata, hyacinthoides non-scripta, teucrium scorodonia, frangula alnus, primula elatior, luzula pilosa, dryopteris carthusiana, arum maculatum, convallaria majalis, circaea lutetiana, populus canadensis, angelica sylvestris, juncus effusus, ficaria verna, urtica dioica, glechoma hederacea, ajuga reptans, geum urbanum, viburnum opulus, dryopteris filix-mas, crataegus monogyna, ilex aquifolium, betula pubescens, carex pilulifera, vaccinium myrtillus, cardamine pratensis, carex sylvatica, alnus incana, ribes rubrum