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