be, arr. leuven, holcus lanatus, ranunculus repens, arrhenatherum elatius, heracleum sphondylium, urtica dioica, poa trivialis, cirsium arvense, populus canadensis, rumex acetosa, tanacetum vulgare, alopecurus pratensis, quercus robur, symphytum officinale, phalaris arundinacea, agrostis capillaris, glechoma hederacea, ranunculus acris, galium aparine, lolium perenne, juncus effusus, filipendula ulmaria, dactylis glomerata, plantago lanceolata, prunus serotina, stellaria graminea, angelica sylvestris, phragmites australis, rumex obtusifolius, calystegia sepium, festuca rubra, achillea millefolium, equisetum arvense, elymus repens, galeopsis tetrahit, trifolium repens, agrostis stolonifera, alnus glutinosa, cardamine pratensis, persicaria amphibia, lythrum salicaria, bidens frondosa, lysimachia vulgaris, anthriscus sylvestris, iris pseudacorus, cerastium fontanum, quercus rubra, cirsium palustre, trifolium pratense, lycopus europaeus, anthoxanthum odoratum