be, arr. leuven, populus canadensis, urtica dioica, quercus robur, glechoma hederacea, symphytum officinale, filipendula ulmaria, cirsium arvense, heracleum sphondylium, galium aparine, angelica sylvestris, ranunculus repens, galeopsis tetrahit, poa trivialis, arrhenatherum elatius, sambucus nigra, alnus glutinosa, phalaris arundinacea, calystegia sepium, holcus lanatus, fraxinus excelsior, alopecurus pratensis, phragmites australis, crataegus monogyna, iris pseudacorus, ribes rubrum, juncus effusus, humulus lupulus, lysimachia vulgaris, cardamine pratensis, cirsium palustre, prunus serotina, lycopus europaeus, geum urbanum, lythrum salicaria, solanum dulcamara, ficaria verna, agrostis capillaris, rumex obtusifolius, corylus avellana, dactylis glomerata, carex acuta, anthriscus sylvestris, rumex acetosa, betula pendula, viburnum opulus, acer pseudoplatanus, equisetum arvense, tanacetum vulgare, ranunculus acris, alnus incana