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