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