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