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