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