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