be, arr. halle-vilvoorde, quercus robur, fraxinus excelsior, lonicera periclymenum, corylus avellana, urtica dioica, acer pseudoplatanus, castanea sativa, hedera helix, heracleum sphondylium, sambucus nigra, ranunculus repens, polygonatum multiflorum, glechoma hederacea, quercus rubra, betula pendula, galium aparine, sorbus aucuparia, holcus lanatus, fagus sylvatica, poa trivialis, teucrium scorodonia, alnus glutinosa, arum maculatum, hyacinthoides non-scripta, silene dioica, lamium galeobdolon, prunus avium, crataegus monogyna, geum urbanum, populus canadensis, carpinus betulus, agrostis capillaris, angelica sylvestris, prunus serotina, juncus effusus, cardamine pratensis, adoxa moschatellina, galeopsis tetrahit, betula pubescens, athyrium filix-femina, frangula alnus, cirsium arvense, ribes rubrum, scrophularia nodosa, ficaria verna, holcus mollis, filipendula ulmaria, salix caprea, arrhenatherum elatius, pteridium aquilinum