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