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