be, arr. leuven, populus canadensis, urtica dioica, cirsium arvense, symphytum officinale, glechoma hederacea, quercus robur, galium aparine, heracleum sphondylium, ranunculus repens, angelica sylvestris, poa trivialis, filipendula ulmaria, galeopsis tetrahit, calystegia sepium, arrhenatherum elatius, holcus lanatus, sambucus nigra, phragmites australis, phalaris arundinacea, alopecurus pratensis, alnus glutinosa, juncus effusus, fraxinus excelsior, crataegus monogyna, lythrum salicaria, lycopus europaeus, solanum dulcamara, iris pseudacorus, cirsium palustre, humulus lupulus, lysimachia vulgaris, rumex obtusifolius, cardamine pratensis, eupatorium cannabinum, elymus repens, dactylis glomerata, ribes rubrum, agrostis stolonifera, geum urbanum, agrostis capillaris, ranunculus acris, rumex acetosa, persicaria hydropiper, rubus caesius, carex acuta, prunus serotina, anthriscus sylvestris, epilobium hirsutum, lolium perenne, tanacetum vulgare