Sparganium glomeratum

{{Short description|Species of aquatic plant}}

{{more citations needed|date=September 2014}}

{{Speciesbox

|image = Sparganium_glomeratum_070828_Vladivostok.jpg

|genus = Sparganium

|species = glomeratum

|authority = Laest. ex Beurl., 1853

}}

Sparganium glomeratum, the clustered bur-reed,{{PLANTS|id=SPGL|taxon=Sparganium glomeratum|accessdate=24 November 2015}} is a species of bur-reed. It is a water plant native to high elevation lakes and marshes of Europe, Asia, and North America. North American populations were doubted as introduced due to its scarce and scattered populations, but a recent herbarium survey found more localities of the species in the central of Canada, concluding the species as circumpolar species.Ito & Cota-Sanchez (2014) Distribution and conservation status of Sparganium (Typhaceae) in the Canadian Prairie Provinces. Great Plains Research 24: 119-125. [http://muse.jhu.edu/login?auth=0&type=summary&url=/journals/great_plains_research/v024/24.2.ito.html doi:10.1353/gpr.2014.0019]