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