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