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