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