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