Catalogue no.:	V-1112352
Taxon:	Potamogeton obtusifolius Mert. & W.D.J.Koch
Label:	Potamogeton obtusifolius
Family:	Potamogetonaceae
Collector:	C.H. Johanson
Date:	1851 08
Country:	Sweden
Landskap:	Södermanland
Socken:	Nacka
Locality:	Stockholm, Hammarby sjö