Catalogue no.:	V-1122272
Taxon:	Polygonum boreale (Lange) Small
Label:	Polygonum heterophyllum var. littorale
Family:	Polygonaceae
Collector:	Alarik Hülphers
Date:	1914 07 05
Country:	Sweden
Landskap:	Uppland
Socken:	Ljusterö
Locality:	Fjärdholmen