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