be, arr. leuven, populus canadensis, filipendula ulmaria, urtica dioica, symphytum officinale, angelica sylvestris, heracleum sphondylium, galium aparine, glechoma hederacea, galeopsis tetrahit, phalaris arundinacea, quercus robur, calystegia sepium, alopecurus pratensis, cirsium arvense, ranunculus repens, alnus glutinosa, poa trivialis, phragmites australis, arrhenatherum elatius, iris pseudacorus, sambucus nigra, humulus lupulus, lythrum salicaria, cirsium palustre, carex acuta, holcus lanatus, solanum dulcamara, fraxinus excelsior, ficaria verna, ribes rubrum, crataegus monogyna, juncus effusus, lysimachia vulgaris, lycopus europaeus, cardamine pratensis, silene dioica, rumex obtusifolius, geum urbanum, valeriana excelsa, anthriscus sylvestris, viburnum opulus, carex acutiformis, rumex acetosa, impatiens glandulifera, equisetum palustre, epilobium hirsutum, ranunculus acris, persicaria hydropiper, galium palustre, dactylis glomerata