be, arr. leuven, quercus robur, quercus rubra, prunus serotina, betula pendula, sorbus aucuparia, acer pseudoplatanus, castanea sativa, lonicera periclymenum, fagus sylvatica, dryopteris carthusiana, pinus sylvestris, corylus avellana, teucrium scorodonia, dryopteris dilatata, urtica dioica, juncus effusus, sambucus nigra, agrostis capillaris, frangula alnus, salix caprea, fraxinus excelsior, athyrium filix-femina, glechoma hederacea, holcus lanatus, carex pilulifera, pteridium aquilinum, molinia caerulea, avenella flexuosa, ranunculus repens, holcus mollis, deschampsia flexuosa, galeopsis tetrahit, alnus glutinosa, juncus conglomeratus, betula pubescens, vaccinium myrtillus, hedera helix, cirsium arvense, moehringia trinervia, populus canadensis, dryopteris filix-mas, prunus avium, eupatorium cannabinum, geum urbanum, scrophularia nodosa, carpinus betulus, polygonatum multiflorum, convallaria majalis, calluna vulgaris, anemone nemorosa