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