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