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