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