Catalogue no.:	V-1113366
Taxon:	Potamogeton perfoliatus L.
Label:	Potamogeton perfoliatus
Family:	Potamogetonaceae
Collector:	Erik Asplund
Date:	1923 07 20
Country:	Sweden
Landskap:	Södermanland
Socken:	Nämdö
Locality:	Biskopsö skärgård, Ånskär