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