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