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