be, arr. tongeren, quercus robur, lonicera periclymenum, sorbus aucuparia, corylus avellana, betula pendula, betula pubescens, fagus sylvatica, castanea sativa, frangula alnus, hedera helix, acer pseudoplatanus, quercus rubra, dryopteris carthusiana, fraxinus excelsior, polygonatum multiflorum, dryopteris dilatata, deschampsia flexuosa, prunus serotina, sambucus nigra, pteridium aquilinum, avenella flexuosa, ilex aquifolium, prunus avium, teucrium scorodonia, carpinus betulus, holcus mollis, molinia caerulea, anemone nemorosa, crataegus monogyna, vaccinium myrtillus, athyrium filix-femina, alnus glutinosa, glechoma hederacea, urtica dioica, pinus sylvestris, moehringia trinervia, geum urbanum, agrostis capillaris, populus tremula, dryopteris filix-mas, hyacinthoides non-scripta, luzula pilosa, carex pilulifera, juncus effusus, lamium galeobdolon, convallaria majalis, oxalis acetosella, holcus lanatus, galium aparine, galeopsis tetrahit