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