Catalogue no.:	V-1113541
Taxon:	Potamogeton perfoliatus L.
Label:	Potamogeton perfoliatus
Family:	Potamogetonaceae
Collector:	Kalevi Alho & Unto Laine
Date:	1970 07 30
Country:	Finland
Landskap:	Ostrobottnia kajanensis
Socken:	Paltamo
Locality:	muddy and clayey bottom of the south shore of Osmankajärvi lake in Raappananmäki village