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