be, arr. leuven, quercus robur, alnus glutinosa, fraxinus excelsior, filipendula ulmaria, urtica dioica, corylus avellana, populus canadensis, sambucus nigra, angelica sylvestris, sorbus aucuparia, lonicera periclymenum, athyrium filix-femina, acer pseudoplatanus, glechoma hederacea, ranunculus repens, quercus rubra, galium aparine, prunus serotina, anemone nemorosa, poa trivialis, juncus effusus, ficaria verna, lysimachia vulgaris, ribes rubrum, humulus lupulus, cardamine pratensis, dryopteris carthusiana, polygonatum multiflorum, cirsium palustre, galeopsis tetrahit, alnus incana, dryopteris dilatata, geum urbanum, heracleum sphondylium, viburnum opulus, frangula alnus, iris pseudacorus, phalaris arundinacea, silene dioica, primula elatior, holcus lanatus, galium palustre, carex remota, solanum dulcamara, prunus padus, prunus avium, carex acutiformis, crataegus monogyna, lycopus europaeus, circaea lutetiana