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