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