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