rorippa amphibia, oxybasis rubra, riccia cavernosa, argentina anserina, atriplex prostrata, bidens frondosa, gnaphalium uliginosum, brachythecium rutabulum, juncus tenuis, limosella aquatica, persicaria amphibia, ranunculus sceleratus, veronica beccabunga, echinochloa crus-galli