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