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