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