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