be, arr. leuven, urtica dioica, phalaris arundinacea, ranunculus repens, galium aparine, poa trivialis, quercus robur, cirsium arvense, holcus lanatus, heracleum sphondylium, phragmites australis, alnus glutinosa, glechoma hederacea, calystegia sepium, glyceria maxima, symphytum officinale, arrhenatherum elatius, elymus repens, sambucus nigra, solanum dulcamara, dactylis glomerata, alopecurus pratensis, juncus effusus, lysimachia vulgaris, lythrum salicaria, galeopsis tetrahit, persicaria amphibia, agrostis stolonifera, filipendula ulmaria, iris pseudacorus, persicaria hydropiper, lycopus europaeus, fraxinus excelsior, tanacetum vulgare, humulus lupulus, equisetum arvense, glyceria fluitans, anthriscus sylvestris, stellaria media, rumex acetosa, lolium perenne, bidens frondosa, rumex obtusifolius, lemna minor, populus canadensis, prunus serotina, agrostis capillaris, galium palustre, holcus mollis, carex acuta, angelica sylvestris