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