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