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