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