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