be, arr. leuven, quercus robur, urtica dioica, cirsium arvense, populus canadensis, ranunculus repens, holcus lanatus, glechoma hederacea, poa trivialis, agrostis capillaris, arrhenatherum elatius, galeopsis tetrahit, sambucus nigra, galium aparine, juncus effusus, heracleum sphondylium, prunus serotina, fraxinus excelsior, phragmites australis, betula pendula, agrostis stolonifera, symphytum officinale, alnus glutinosa, acer pseudoplatanus, dactylis glomerata, quercus rubra, phalaris arundinacea, angelica sylvestris, calystegia sepium, lysimachia vulgaris, rumex obtusifolius, lolium perenne, elymus repens, festuca rubra, rumex acetosa, crataegus monogyna, stellaria media, sorbus aucuparia, hypericum perforatum, cerastium holosteoides, frangula alnus, ranunculus acris, tanacetum vulgare, equisetum arvense, salix caprea, lycopus europaeus, trifolium repens, corylus avellana, alopecurus pratensis, holcus mollis, cirsium palustre