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