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