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