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