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