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American Bur Reed

Sparganium americanum

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Category
Forb / Wildflower
Sun
Full to Partial
Soil moisture
Wet
Bloom time
Jun–Aug
Bloom color
White
Notes
Rhizomatous

About American Bur Reed

American Bur Reed is a fascinating aquatic perennial that adds a unique architectural element to water features and wetlands. Growing one to three feet tall, it features long, strap-like, emerald-green leaves that can be erect or floating, depending on water depth. In mid-summer, it produces intriguing, spherical flower heads that resemble spiky green balls, maturing into woody, nut-like fruits. These 'burs' are a favored food source for waterfowl, while the dense foliage provides excellent cover and nesting sites for marsh birds and amphibians. Native to the edges of ponds, lakes, and slow-moving streams across most of North America, it plays a vital role in stabilizing shorelines and filtering water. American Bur Reed is an ideal choice for pond margins, rain gardens, or shallow water plantings, thriving in full sun to partial shade and consistently wet soils. It can even grow in water up to a foot deep, offering both visual interest and significant wildlife benefits with its bold texture and unique fruiting structures.

Native range

Native to 36 states:

AlabamaArkansasConnecticutD.C.DelawareFloridaGeorgiaIowaIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiNorth CarolinaNorth DakotaNew HampshireNew JerseyNew YorkOhioOklahomaPennsylvaniaRhode IslandSouth CarolinaTennesseeTexasVirginiaVermontWisconsinWest Virginia

County range map

BONAP county-level native range map for Sparganium americanum

Range map courtesy of BONAP (Biota of North America Program).

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