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