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