Catalogue no.:	V-1112222
Taxon:	Potamogeton obtusifolius Mert. & W.D.J.Koch
Label:	Potamogeton obtusifolius
Family:	Potamogetonaceae
Collector:	Arvid Frisendahl
Date:	1929 07 25
Country:	Sweden
Landskap:	Bohuslän
Socken:	Tjärnö
Locality:	Nordkoster