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