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