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