be, arr. leuven, populus canadensis, cirsium arvense, ranunculus repens, urtica dioica, arrhenatherum elatius, holcus lanatus, quercus robur, glechoma hederacea, poa trivialis, heracleum sphondylium, agrostis capillaris, phragmites australis, symphytum officinale, rumex acetosa, ranunculus acris, alopecurus pratensis, lolium perenne, galium aparine, juncus effusus, festuca rubra, agrostis stolonifera, angelica sylvestris, plantago lanceolata, equisetum arvense, dactylis glomerata, phalaris arundinacea, calystegia sepium, galeopsis tetrahit, elymus repens, trifolium repens, centaurea jacea, cerastium holosteoides, tanacetum vulgare, sambucus nigra, achillea millefolium, fraxinus excelsior, hypericum perforatum, crataegus monogyna, vicia cracca, alnus glutinosa, filipendula ulmaria, lathyrus pratensis, stellaria graminea, trifolium pratense, carex hirta, rumex obtusifolius, cerastium fontanum, cirsium palustre, persicaria amphibia, prunus serotina