be, arr. leuven, quercus robur, lonicera periclymenum, corylus avellana, acer pseudoplatanus, sorbus aucuparia, fraxinus excelsior, castanea sativa, polygonatum multiflorum, hedera helix, quercus rubra, sambucus nigra, anemone nemorosa, betula pendula, fagus sylvatica, prunus serotina, athyrium filix-femina, prunus avium, hyacinthoides non-scripta, carpinus betulus, frangula alnus, alnus glutinosa, lamium galeobdolon, dryopteris carthusiana, betula pubescens, dryopteris dilatata, primula elatior, glechoma hederacea, crataegus monogyna, arum maculatum, urtica dioica, ribes rubrum, pteridium aquilinum, ficaria verna, teucrium scorodonia, geum urbanum, adoxa moschatellina, silene dioica, viburnum opulus, angelica sylvestris, circaea lutetiana, populus canadensis, holcus mollis, convallaria majalis, filipendula ulmaria, ilex aquifolium, dryopteris filix-mas, viola riviniana, heracleum sphondylium, galium aparine, ajuga reptans