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