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