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