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