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