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