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