Catalogue no.:	V-1110290
Taxon:	Potamogeton gramineus x perfoliatus
Label:	Potamogeton (gramineus x perfoliatus) var. subgramineus f. involutus
Family:	Potamogetonaceae
Collector:	Carl Sandberg
Date:	1917 08
Country:	Sweden
Landskap:	Västergötland
Socken:	Kinnarumma
Locality:	Rydboholm in Viskan