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