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River Bulrush

Bolboschoenus fluviatilis

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Category
Grass / Sedge / Rush
Sun
Full
Soil moisture
Wet to Medium-Wet
Bloom time
Jun–Jul
Notes
Aggressive, Rhizomatous

About River Bulrush

River Bulrush is a robust and architectural sedge that provides essential structure and erosion control for large-scale wetland projects. A commanding presence in the landscape, it often forms dense, protective colonies along shorelines and in marshes. Reaching impressive heights of five to seven feet, it is characterized by its sturdy, triangular stems and long, arching leaves. In early summer, it produces clusters of brown, nut-like spikelets that add textural interest. Native across much of North America, from the Atlantic to the Pacific and north into Canada, this species is typically found in fresh shores, inland marshes, and coastal estuaries. It is a vital resource for waterfowl, providing both nesting cover and high-energy seeds. Due to its aggressive, rhizomatous growth habit, it is best suited for larger naturalized areas where it can stabilize soil and filter water. It thrives in full sun and wet conditions, making it a top choice for pond margins and large restoration sites.

Native range

Native to 38 states:

AlabamaArizonaCaliforniaColoradoConnecticutD.C.DelawareIowaIdahoIllinoisIndianaKansasKentuckyMassachusettsMarylandMaineMichiganMinnesotaMissouriMontanaNorth DakotaNebraskaNew HampshireNew JerseyNew MexicoNew YorkOhioOklahomaOregonPennsylvaniaSouth DakotaTennesseeUtahVirginiaVermontWashingtonWisconsinWest Virginia

County range map

BONAP county-level native range map for Bolboschoenus fluviatilis

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

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