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