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