be, arr. leuven, urtica dioica, populus canadensis, heracleum sphondylium, galium aparine, quercus robur, arrhenatherum elatius, cirsium arvense, glechoma hederacea, ranunculus repens, holcus lanatus, poa trivialis, symphytum officinale, filipendula ulmaria, alopecurus pratensis, sambucus nigra, crataegus monogyna, angelica sylvestris, fraxinus excelsior, calystegia sepium, phalaris arundinacea, alnus glutinosa, dactylis glomerata, galeopsis tetrahit, phragmites australis, anthriscus sylvestris, rumex acetosa, ranunculus acris, humulus lupulus, elymus repens, juncus effusus, corylus avellana, geum urbanum, agrostis capillaris, cirsium palustre, ficaria verna, rumex obtusifolius, lolium perenne, iris pseudacorus, agrostis stolonifera, solanum dulcamara, prunus serotina, cardamine pratensis, silene dioica, lythrum salicaria, lathyrus pratensis, stellaria graminea, vicia cracca, tanacetum vulgare, ribes rubrum, lysimachia vulgaris