be, arr. leuven, populus canadensis, quercus robur, urtica dioica, filipendula ulmaria, ranunculus repens, prunus serotina, alnus glutinosa, quercus rubra, angelica sylvestris, heracleum sphondylium, holcus lanatus, poa trivialis, galium aparine, juncus effusus, phalaris arundinacea, alopecurus pratensis, galeopsis tetrahit, glechoma hederacea, sambucus nigra, cirsium arvense, lysimachia vulgaris, cirsium palustre, arrhenatherum elatius, symphytum officinale, agrostis capillaris, humulus lupulus, sorbus aucuparia, phragmites australis, cardamine pratensis, iris pseudacorus, lycopus europaeus, rumex acetosa, fraxinus excelsior, impatiens glandulifera, lythrum salicaria, calystegia sepium, rumex obtusifolius, alnus incana, bidens frondosa, betula pendula, stellaria graminea, solanum dulcamara, persicaria hydropiper, tanacetum vulgare, corylus avellana, holcus mollis, carex acuta, ribes rubrum, ranunculus acris, frangula alnus