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