be, arr. leuven, castanea sativa, pinus sylvestris, quercus rubra, betula pendula, vaccinium myrtillus, carex pilulifera, prunus serotina, fagus sylvatica, quercus robur, molinia caerulea, avenella flexuosa, frangula alnus, calluna vulgaris, deschampsia flexuosa, sorbus aucuparia, pteridium aquilinum, lonicera periclymenum, teucrium scorodonia, ilex aquifolium, dryopteris carthusiana, dryopteris dilatata, pinus nigra, pseudotsuga menziesii, quercus petraea, agrostis capillaris, betula pubescens, picea abies, juncus effusus, larix kaempferi, cytisus scoparius, erica tetralix, rumex angiocarpus, holcus mollis, luzula pilosa, rumex acetosella, acer pseudoplatanus, amelanchier lamarckii, convallaria majalis, luzula multiflora, galium saxatile, melampyrum pratense, hedera helix, juncus conglomeratus, pinus pinaster, festuca filiformis, corylus avellana, erica cinerea, pinus strobus, populus tremula, hypericum pulchrum