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