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