be, arr. leuven, quercus robur, quercus rubra, prunus serotina, sorbus aucuparia, frangula alnus, betula pendula, pinus sylvestris, molinia caerulea, lonicera periclymenum, castanea sativa, avenella flexuosa, dryopteris dilatata, deschampsia flexuosa, vaccinium myrtillus, amelanchier lamarckii, calluna vulgaris, dryopteris carthusiana, agrostis capillaris, betula pubescens, carex pilulifera, fagus sylvatica, juncus effusus, teucrium scorodonia, holcus mollis, holcus lanatus, pinus nigra, corylus avellana, pteridium aquilinum, rumex angiocarpus, ilex aquifolium, sambucus nigra, rumex acetosella, acer pseudoplatanus, galeopsis tetrahit, robinia pseudoacacia, larix kaempferi, pseudotsuga menziesii, cytisus scoparius, erica tetralix, polygonatum multiflorum, alnus glutinosa, rhododendron ponticum, salix caprea, juncus tenuis, ceratocapnos claviculata, athyrium filix-femina, urtica dioica, hedera helix, populus tremula, festuca filiformis