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