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