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