be, arr. leuven, populus canadensis, quercus robur, fraxinus excelsior, urtica dioica, filipendula ulmaria, glechoma hederacea, alnus glutinosa, galium aparine, angelica sylvestris, sambucus nigra, heracleum sphondylium, corylus avellana, poa trivialis, ranunculus repens, crataegus monogyna, ribes rubrum, ficaria verna, humulus lupulus, galeopsis tetrahit, geum urbanum, acer pseudoplatanus, symphytum officinale, lonicera periclymenum, holcus lanatus, silene dioica, viburnum opulus, sorbus aucuparia, phalaris arundinacea, anemone nemorosa, cardamine pratensis, juncus effusus, primula elatior, alopecurus pratensis, arrhenatherum elatius, prunus avium, polygonatum multiflorum, athyrium filix-femina, cirsium arvense, hedera helix, cirsium palustre, calystegia sepium, stachys sylvatica, prunus serotina, phragmites australis, moehringia trinervia, alnus incana, iris pseudacorus, adoxa moschatellina, circaea lutetiana, lysimachia vulgaris