be, arr. leuven, quercus robur, populus canadensis, filipendula ulmaria, angelica sylvestris, ranunculus repens, urtica dioica, heracleum sphondylium, holcus lanatus, cirsium palustre, juncus effusus, alopecurus pratensis, poa trivialis, arrhenatherum elatius, alnus glutinosa, galium aparine, galeopsis tetrahit, glechoma hederacea, rumex acetosa, phalaris arundinacea, symphytum officinale, cardamine pratensis, cirsium arvense, ranunculus acris, stellaria graminea, lysimachia vulgaris, agrostis capillaris, lythrum salicaria, carex acuta, equisetum palustre, fraxinus excelsior, silene flos-cuculi, iris pseudacorus, sambucus nigra, cerastium fontanum, phragmites australis, ficaria verna, calystegia sepium, prunus serotina, galium palustre, humulus lupulus, lotus pedunculatus, holcus mollis, corylus avellana, anthoxanthum odoratum, carex acutiformis, scirpus sylvaticus, lonicera periclymenum, lycopus europaeus, lolium perenne, sorbus aucuparia