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