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