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