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