be, arr. leuven, acer pseudoplatanus, fagus sylvatica, lonicera periclymenum, quercus robur, sorbus aucuparia, castanea sativa, dryopteris carthusiana, corylus avellana, athyrium filix-femina, luzula pilosa, quercus rubra, pteridium aquilinum, prunus serotina, dryopteris dilatata, carex pilulifera, betula pendula, carpinus betulus, vaccinium myrtillus, fraxinus excelsior, anemone nemorosa, hedera helix, ilex aquifolium, convallaria majalis, frangula alnus, oxalis acetosella, juncus effusus, avenella flexuosa, teucrium scorodonia, milium effusum, lamium galeobdolon, polygonatum multiflorum, deschampsia flexuosa, molinia caerulea, deschampsia cespitosa, maianthemum bifolium, betula pubescens, sambucus nigra, pinus sylvestris, prunus avium, dryopteris filix-mas, holcus mollis, carex sylvatica, circaea lutetiana, carex remota, quercus petraea, urtica dioica, alnus glutinosa, picea abies, rabelera holostea, rubus idaeus