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