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