be, arr. tongeren, quercus robur, sorbus aucuparia, prunus serotina, quercus rubra, betula pendula, frangula alnus, pinus sylvestris, dryopteris dilatata, dryopteris carthusiana, avenella flexuosa, deschampsia flexuosa, lonicera periclymenum, fagus sylvatica, vaccinium myrtillus, molinia caerulea, amelanchier lamarckii, betula pubescens, agrostis capillaris, sambucus nigra, ilex aquifolium, galeopsis tetrahit, calluna vulgaris, acer pseudoplatanus, carex pilulifera, holcus mollis, pseudotsuga menziesii, corylus avellana, rubus gratus, ceratocapnos claviculata, castanea sativa, pteridium aquilinum, rubus idaeus, urtica dioica, holcus lanatus, juncus effusus, moehringia trinervia, hedera helix, teucrium scorodonia, robinia pseudoacacia, polygonatum multiflorum, alnus glutinosa, rumex angiocarpus, pinus nigra, picea abies, populus tremula, larix kaempferi, rumex acetosella, rubus plicatus, athyrium filix-femina, maianthemum bifolium