be, arr. leuven, populus canadensis, filipendula ulmaria, urtica dioica, symphytum officinale, angelica sylvestris, heracleum sphondylium, phalaris arundinacea, ranunculus repens, galium aparine, calystegia sepium, galeopsis tetrahit, glechoma hederacea, cirsium arvense, alopecurus pratensis, poa trivialis, arrhenatherum elatius, quercus robur, iris pseudacorus, carex acuta, lythrum salicaria, alnus glutinosa, holcus lanatus, phragmites australis, juncus effusus, cirsium palustre, cardamine pratensis, lycopus europaeus, solanum dulcamara, sambucus nigra, humulus lupulus, lysimachia vulgaris, persicaria hydropiper, rumex obtusifolius, equisetum palustre, rumex acetosa, ranunculus acris, fraxinus excelsior, ficaria verna, ribes rubrum, glyceria maxima, epilobium hirsutum, galium palustre, persicaria amphibia, crataegus monogyna, stellaria graminea, silene flos-cuculi, valeriana excelsa, cerastium fontanum, myosotis scorpioides, carex acutiformis