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