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