be, arr. leuven, populus canadensis, urtica dioica, quercus robur, ranunculus repens, holcus lanatus, heracleum sphondylium, poa trivialis, juncus effusus, cirsium arvense, arrhenatherum elatius, angelica sylvestris, filipendula ulmaria, glechoma hederacea, galium aparine, alopecurus pratensis, sambucus nigra, alnus glutinosa, phalaris arundinacea, galeopsis tetrahit, rumex acetosa, symphytum officinale, agrostis capillaris, calystegia sepium, cirsium palustre, lolium perenne, cardamine pratensis, fraxinus excelsior, phragmites australis, ranunculus acris, rumex obtusifolius, cerastium fontanum, prunus serotina, lythrum salicaria, lysimachia vulgaris, agrostis stolonifera, stellaria graminea, dactylis glomerata, equisetum palustre, equisetum arvense, quercus rubra, iris pseudacorus, persicaria hydropiper, elymus repens, crataegus monogyna, lycopus europaeus, humulus lupulus, trifolium repens, acer pseudoplatanus, stellaria media, ficaria verna