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