be, arr. leuven, quercus robur, populus canadensis, angelica sylvestris, urtica dioica, heracleum sphondylium, filipendula ulmaria, alnus glutinosa, ranunculus repens, corylus avellana, sambucus nigra, fraxinus excelsior, glechoma hederacea, poa trivialis, juncus effusus, holcus lanatus, prunus serotina, galium aparine, quercus rubra, arrhenatherum elatius, lonicera periclymenum, galeopsis tetrahit, sorbus aucuparia, cirsium palustre, cardamine pratensis, symphytum officinale, acer pseudoplatanus, ficaria verna, alopecurus pratensis, ribes rubrum, anemone nemorosa, phalaris arundinacea, crataegus monogyna, cirsium arvense, alnus incana, lysimachia vulgaris, frangula alnus, agrostis capillaris, athyrium filix-femina, betula pendula, humulus lupulus, polygonatum multiflorum, viburnum opulus, rumex acetosa, ranunculus acris, lythrum salicaria, geum urbanum, calystegia sepium, iris pseudacorus, prunus avium, holcus mollis