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