be, arr. leuven, quercus robur, populus canadensis, urtica dioica, alnus glutinosa, prunus serotina, fraxinus excelsior, corylus avellana, sambucus nigra, glechoma hederacea, filipendula ulmaria, angelica sylvestris, sorbus aucuparia, lonicera periclymenum, betula pendula, galeopsis tetrahit, heracleum sphondylium, acer pseudoplatanus, quercus rubra, ranunculus repens, crataegus monogyna, galium aparine, ribes rubrum, frangula alnus, holcus lanatus, juncus effusus, poa trivialis, viburnum opulus, anemone nemorosa, cirsium palustre, geum urbanum, agrostis capillaris, symphytum officinale, alnus incana, polygonatum multiflorum, cardamine pratensis, ficaria verna, athyrium filix-femina, lysimachia vulgaris, prunus avium, dryopteris carthusiana, cirsium arvense, arrhenatherum elatius, humulus lupulus, moehringia trinervia, phragmites australis, betula pubescens, deschampsia cespitosa, hedera helix, molinia caerulea, phalaris arundinacea