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