Catalogue no.:	V-1110302
Taxon:	Potamogeton gramineus x perfoliatus
Label:	Potamogeton gramineus L.
Family:	Potamogetonaceae
Collector:	Gottfried Hjort
Date:	1868 06 13
Country:	Sweden
Landskap:	Uppland
Socken:	Almunge
Locality:	Stora Väsby