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