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