be, arr. tongeren, prunus serotina, pinus sylvestris, quercus rubra, quercus robur, betula pendula, sorbus aucuparia, avenella flexuosa, deschampsia flexuosa, vaccinium myrtillus, frangula alnus, dryopteris carthusiana, molinia caerulea, fagus sylvatica, dryopteris dilatata, lonicera periclymenum, calluna vulgaris, castanea sativa, betula pubescens, pseudotsuga menziesii, carex pilulifera, amelanchier lamarckii, pteridium aquilinum, ilex aquifolium, pinus nigra, ceratocapnos claviculata, agrostis capillaris, teucrium scorodonia, quercus petraea, picea abies, holcus mollis, larix kaempferi, galium saxatile, rumex angiocarpus, juncus effusus, rumex acetosella, melampyrum pratense, corylus avellana, rubus idaeus, galeopsis tetrahit, erica tetralix, luzula pilosa, populus tremula, acer pseudoplatanus, pinus strobus, moehringia trinervia, cytisus scoparius, rubus plicatus, maianthemum bifolium, hedera helix, robinia pseudoacacia