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