be, arr. tongeren, pinus sylvestris, avenella flexuosa, deschampsia flexuosa, quercus robur, vaccinium myrtillus, betula pendula, sorbus aucuparia, prunus serotina, calluna vulgaris, fagus sylvatica, quercus rubra, frangula alnus, agrostis capillaris, dryopteris dilatata, ceratocapnos claviculata, dryopteris carthusiana, galium saxatile, rumex angiocarpus, rumex acetosella, carex pilulifera, molinia caerulea, pseudotsuga menziesii, lonicera periclymenum, amelanchier lamarckii, betula pubescens, ilex aquifolium, holcus mollis, picea abies, pteridium aquilinum, quercus petraea, holcus lanatus, castanea sativa, agrostis vinealis, vaccinium vitis-idaea, cytisus scoparius, teucrium scorodonia, pinus nigra, galeopsis tetrahit, digitalis purpurea, festuca filiformis, melampyrum pratense, rubus idaeus, moehringia trinervia, hypericum perforatum, luzula campestris, urtica dioica, erica tetralix, juncus effusus, stellaria media, carex arenaria