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