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