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