be, arr. leuven, populus canadensis, urtica dioica, quercus robur, fraxinus excelsior, glechoma hederacea, angelica sylvestris, filipendula ulmaria, sambucus nigra, alnus glutinosa, galium aparine, heracleum sphondylium, corylus avellana, symphytum officinale, acer pseudoplatanus, ranunculus repens, silene dioica, ficaria verna, poa trivialis, ribes rubrum, galeopsis tetrahit, geum urbanum, crataegus monogyna, humulus lupulus, cardamine pratensis, circaea lutetiana, phalaris arundinacea, alnus incana, athyrium filix-femina, primula elatior, cirsium palustre, calystegia sepium, juncus effusus, solanum dulcamara, viburnum opulus, stachys sylvatica, hedera helix, holcus lanatus, iris pseudacorus, arum maculatum, anemone nemorosa, cirsium oleraceum, lythrum salicaria, lonicera periclymenum, lycopus europaeus, prunus avium, cirsium arvense, geranium robertianum, lysimachia vulgaris, polygonatum multiflorum, phragmites australis