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