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