be, arr. leuven, quercus robur, corylus avellana, fraxinus excelsior, alnus glutinosa, sambucus nigra, acer pseudoplatanus, lonicera periclymenum, sorbus aucuparia, prunus serotina, urtica dioica, polygonatum multiflorum, quercus rubra, hedera helix, populus canadensis, ribes rubrum, glechoma hederacea, anemone nemorosa, galium aparine, filipendula ulmaria, prunus avium, crataegus monogyna, prunus padus, geum urbanum, ficaria verna, athyrium filix-femina, angelica sylvestris, viburnum opulus, poa trivialis, lamium galeobdolon, humulus lupulus, fagus sylvatica, silene dioica, frangula alnus, adoxa moschatellina, heracleum sphondylium, alnus incana, castanea sativa, dryopteris dilatata, galeopsis tetrahit, dryopteris carthusiana, ranunculus repens, betula pendula, aegopodium podagraria, circaea lutetiana, stachys sylvatica, carpinus betulus, primula elatior, lysimachia vulgaris, galanthus nivalis, moehringia trinervia