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