be, arr. leuven, populus canadensis, quercus robur, urtica dioica, filipendula ulmaria, glechoma hederacea, angelica sylvestris, alnus glutinosa, sambucus nigra, fraxinus excelsior, heracleum sphondylium, galium aparine, galeopsis tetrahit, ribes rubrum, symphytum officinale, crataegus monogyna, corylus avellana, ranunculus repens, humulus lupulus, poa trivialis, geum urbanum, ficaria verna, cirsium palustre, lonicera periclymenum, cardamine pratensis, phalaris arundinacea, silene dioica, acer pseudoplatanus, juncus effusus, viburnum opulus, iris pseudacorus, calystegia sepium, prunus serotina, sorbus aucuparia, solanum dulcamara, holcus lanatus, cirsium arvense, moehringia trinervia, athyrium filix-femina, lysimachia vulgaris, phragmites australis, betula pendula, lycopus europaeus, lythrum salicaria, dryopteris carthusiana, arrhenatherum elatius, alnus incana, alopecurus pratensis, anemone nemorosa, prunus avium, frangula alnus