be, arr. leuven, populus canadensis, urtica dioica, phalaris arundinacea, filipendula ulmaria, symphytum officinale, galium aparine, cirsium arvense, heracleum sphondylium, angelica sylvestris, ranunculus repens, poa trivialis, alopecurus pratensis, calystegia sepium, phragmites australis, galeopsis tetrahit, glechoma hederacea, arrhenatherum elatius, holcus lanatus, juncus effusus, iris pseudacorus, alnus glutinosa, lythrum salicaria, quercus robur, lycopus europaeus, solanum dulcamara, carex acuta, cirsium palustre, lysimachia vulgaris, rumex obtusifolius, sambucus nigra, humulus lupulus, persicaria hydropiper, rumex acetosa, cardamine pratensis, impatiens glandulifera, equisetum palustre, galium palustre, glyceria maxima, epilobium hirsutum, anthriscus sylvestris, persicaria amphibia, agrostis stolonifera, ranunculus acris, elymus repens, valeriana excelsa, dactylis glomerata, tanacetum vulgare, stellaria graminea, agrostis capillaris, fraxinus excelsior