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