be, arr. halle-vilvoorde, castanea sativa, fagus sylvatica, quercus rubra, prunus serotina, quercus robur, sorbus aucuparia, lonicera periclymenum, betula pendula, pinus sylvestris, vaccinium myrtillus, acer pseudoplatanus, pteridium aquilinum, dryopteris carthusiana, carex pilulifera, teucrium scorodonia, dryopteris dilatata, frangula alnus, avenella flexuosa, molinia caerulea, deschampsia flexuosa, ilex aquifolium, corylus avellana, quercus petraea, convallaria majalis, luzula pilosa, hedera helix, carpinus betulus, athyrium filix-femina, betula pubescens, calluna vulgaris, holcus mollis, anemone nemorosa, polygonatum multiflorum, pinus nigra, juncus effusus, prunus avium, sambucus nigra, oxalis acetosella, fraxinus excelsior, maianthemum bifolium, picea abies, agrostis capillaris, dryopteris filix-mas, pseudotsuga menziesii, salix caprea, hyacinthoides non-scripta, moehringia trinervia, lamium galeobdolon, populus tremula, deschampsia cespitosa