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