Catalogue no.:	V-1113367
Taxon:	Potamogeton perfoliatus L.
Label:	Potamogeton perfoliatus
Family:	Potamogetonaceae
Collector:	Eugène Köhler
Date:	1885 08
Country:	Sweden
Landskap:	Södermanland
Socken:	Mariefred
Locality:	Mariefred, Näsängsudden