Catalogue no.:	V-1112361
Taxon:	Potamogeton obtusifolius Mert. & W.D.J.Koch
Label:	Potamogeton obtusifolius
Family:	Potamogetonaceae
Collector:	G. Kjellberg
Date:	1904 09
Country:	Sweden
Landskap:	Uppland
Socken:	Närtuna
Locality:	Trehörningen