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