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