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