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