be, arr. leuven, quercus robur, quercus rubra, prunus serotina, sorbus aucuparia, frangula alnus, betula pendula, lonicera periclymenum, corylus avellana, pinus sylvestris, agrostis capillaris, holcus lanatus, sambucus nigra, castanea sativa, dryopteris carthusiana, holcus mollis, avenella flexuosa, dryopteris dilatata, juncus effusus, populus canadensis, molinia caerulea, galeopsis tetrahit, deschampsia flexuosa, urtica dioica, ranunculus repens, alnus glutinosa, betula pubescens, teucrium scorodonia, polygonatum multiflorum, amelanchier lamarckii, vaccinium myrtillus, acer pseudoplatanus, arrhenatherum elatius, heracleum sphondylium, athyrium filix-femina, calluna vulgaris, angelica sylvestris, salix caprea, pteridium aquilinum, fraxinus excelsior, galium aparine, prunus avium, glechoma hederacea, rumex acetosa, cirsium arvense, poa trivialis, hedera helix, robinia pseudoacacia, populus tremula, hypericum perforatum, fagus sylvatica