botrydium granulatum, rorippa sylvestris, limosella aquatica, persicaria maculosa, cyperus fuscus, gnaphalium uliginosum, oxybasis glauca, plantago major, cyperus michelianus, myriophyllum spicatum, oxybasis chenopodioides, persicaria lapathifolia, potentilla supina, rumex crispus, azolla filiculoides, cyperus flavescens