be, arr. leuven, populus canadensis, quercus robur, urtica dioica, glechoma hederacea, sambucus nigra, galium aparine, fraxinus excelsior, angelica sylvestris, heracleum sphondylium, alnus glutinosa, ranunculus repens, poa trivialis, filipendula ulmaria, galeopsis tetrahit, symphytum officinale, acer pseudoplatanus, crataegus monogyna, holcus lanatus, prunus serotina, corylus avellana, cirsium arvense, ribes rubrum, geum urbanum, arrhenatherum elatius, juncus effusus, quercus rubra, humulus lupulus, betula pendula, silene dioica, calystegia sepium, phalaris arundinacea, ficaria verna, sorbus aucuparia, alopecurus pratensis, cardamine pratensis, lonicera periclymenum, alnus incana, phragmites australis, cirsium palustre, agrostis capillaris, prunus avium, rumex obtusifolius, solanum dulcamara, iris pseudacorus, dryopteris carthusiana, viburnum opulus, moehringia trinervia, salix caprea, lysimachia vulgaris, lycopus europaeus