Catalogue no.:	V-1113459
Taxon:	Potamogeton perfoliatus L.
Label:	Potamogeton perfoliatus
Family:	Potamogetonaceae
Collector:	K.A.G. Gredin
Date:	1898
Country:	Sweden
Landskap:	Medelpad
Socken:	Timrå
Locality:	Vifsta [Vivsta] varv