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