be, arr. leuven, populus canadensis, quercus robur, heracleum sphondylium, urtica dioica, glechoma hederacea, angelica sylvestris, fraxinus excelsior, symphytum officinale, arrhenatherum elatius, ranunculus repens, galium aparine, cirsium arvense, filipendula ulmaria, sambucus nigra, poa trivialis, holcus lanatus, crataegus monogyna, alnus glutinosa, corylus avellana, calystegia sepium, phragmites australis, alopecurus pratensis, galeopsis tetrahit, phalaris arundinacea, acer pseudoplatanus, juncus effusus, ranunculus acris, humulus lupulus, dactylis glomerata, ficaria verna, geum urbanum, ribes rubrum, cirsium palustre, cardamine pratensis, lythrum salicaria, lonicera periclymenum, agrostis capillaris, rumex acetosa, equisetum arvense, iris pseudacorus, prunus serotina, viburnum opulus, lysimachia vulgaris, rubus caesius, elymus repens, agrostis stolonifera, lathyrus pratensis, silene dioica, prunus avium, betula pendula