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