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