Catalogue no.:	V-1112351
Taxon:	Potamogeton obtusifolius Mert. & W.D.J.Koch
Label:	Potamogeton obtusifolius
Family:	Potamogetonaceae
Collector:	J.V. Björnström
Date:	1850
Country:	Sweden
Landskap:	Södermanland
Socken:	Nacka
Locality:	Stockholm i Hammarbysjön