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