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