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