be, arr. leuven, quercus robur, castanea sativa, betula pendula, quercus rubra, frangula alnus, pinus sylvestris, prunus serotina, molinia caerulea, calluna vulgaris, sorbus aucuparia, vaccinium myrtillus, deschampsia flexuosa, avenella flexuosa, lonicera periclymenum, carex pilulifera, teucrium scorodonia, betula pubescens, pteridium aquilinum, fagus sylvatica, agrostis capillaris, dryopteris dilatata, dryopteris carthusiana, erica tetralix, holcus mollis, cytisus scoparius, rumex angiocarpus, festuca filiformis, amelanchier lamarckii, ilex aquifolium, juncus effusus, rumex acetosella, corylus avellana, pinus nigra, populus tremula, hieracium umbellatum, potentilla erecta, robinia pseudoacacia, holcus lanatus, danthonia decumbens, luzula multiflora, quercus petraea, salix caprea, acer pseudoplatanus, hedera helix, juncus conglomeratus, agrostis vinealis, athyrium filix-femina, polygonatum multiflorum, pseudotsuga menziesii, pinus pinaster