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