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