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