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