be, arr. leuven, fraxinus excelsior, acer pseudoplatanus, corylus avellana, quercus robur, sambucus nigra, hedera helix, arum maculatum, urtica dioica, alnus glutinosa, polygonatum multiflorum, anemone nemorosa, lamium galeobdolon, circaea lutetiana, glechoma hederacea, athyrium filix-femina, quercus rubra, ficaria verna, castanea sativa, geum urbanum, fagus sylvatica, carpinus betulus, primula elatior, adoxa moschatellina, prunus avium, lonicera periclymenum, galanthus nivalis, sorbus aucuparia, populus canadensis, stachys sylvatica, galium aparine, prunus serotina, crataegus monogyna, alnus incana, filipendula ulmaria, silene dioica, allium ursinum, ribes rubrum, dryopteris carthusiana, angelica sylvestris, carex remota, viburnum opulus, paris quadrifolia, carex sylvatica, prunus padus, deschampsia cespitosa, heracleum sphondylium, hyacinthoides non-scripta, geranium robertianum, dryopteris filix-mas, ranunculus repens