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