be, arr. nivelles, prunus serotina, quercus rubra, quercus robur, castanea sativa, acer pseudoplatanus, lonicera periclymenum, corylus avellana, sorbus aucuparia, fagus sylvatica, fraxinus excelsior, athyrium filix-femina, carpinus betulus, polygonatum multiflorum, dryopteris carthusiana, lamium galeobdolon, hedera helix, betula pendula, dryopteris dilatata, anemone nemorosa, pteridium aquilinum, convallaria majalis, hyacinthoides non-scripta, sambucus nigra, teucrium scorodonia, urtica dioica, circaea lutetiana, frangula alnus, pinus sylvestris, alnus glutinosa, prunus avium, arum maculatum, primula elatior, glechoma hederacea, juncus effusus, luzula pilosa, vaccinium myrtillus, adoxa moschatellina, ficaria verna, maianthemum bifolium, carex sylvatica, carex remota, alnus incana, ilex aquifolium, geum urbanum, betula pubescens, dryopteris filix-mas, scrophularia nodosa, carex pilulifera, galeopsis tetrahit, populus canadensis