be, arr. halle-vilvoorde, quercus robur, lonicera periclymenum, acer pseudoplatanus, corylus avellana, sorbus aucuparia, fraxinus excelsior, sambucus nigra, hedera helix, polygonatum multiflorum, castanea sativa, prunus serotina, fagus sylvatica, quercus rubra, betula pendula, alnus glutinosa, betula pubescens, dryopteris dilatata, dryopteris carthusiana, athyrium filix-femina, glechoma hederacea, anemone nemorosa, urtica dioica, crataegus monogyna, frangula alnus, prunus avium, ribes rubrum, geum urbanum, carpinus betulus, ficaria verna, lamium galeobdolon, populus canadensis, hyacinthoides non-scripta, silene dioica, adoxa moschatellina, arum maculatum, teucrium scorodonia, viburnum opulus, holcus mollis, galium aparine, circaea lutetiana, pteridium aquilinum, primula elatior, poa trivialis, moehringia trinervia, angelica sylvestris, dryopteris filix-mas, galeopsis tetrahit, juncus effusus, ilex aquifolium, cardamine pratensis