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