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