echinochloa crus-galli, eleocharis acicularis, persicaria hydropiper, alisma plantago-aquatica, persicaria amphibia, alisma gramineum, bidens tripartita, butomus umbellatus, galium palustre, inula britannica, lysimachia vulgaris, oenanthe aquatica, phalaris arundinacea, rorippa palustris, rumex stenophyllus, xanthium strumarium