Catalogue no.:	V-1110180
Taxon:	Potamogeton gramineus x perfoliatus
Label:	Potamogeton x nitens Weber
Family:	Potamogetonaceae
Collector:	A.J. Douhan
Date:	1894 08 09
Country:	Sweden
Landskap:	Hälsingland
Socken:	Ljusdal
Locality:	i älven