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