Flowering Rush

Flowering Rush (Butomus umbellatus)

Flowering-RushCategory: Containment
Distribution: In the Aberdeen area and in the Lake Pend Oreille system.

Diagnostic Characteristics

  • Up to 5′ tall, rush-like marsh plant
  • Showy white or pale pink flowers in a large umbel
  • Stems are triangular in cross-section


  • Hardy in zones 3-10, spreads locally by rhizomes and by fragmentation of the root system
  • Displaces native riparian plants, blocks canals and boat traffic
  • Control of established populations is difficult and requires extensive physical methods of control

Similar Plants

  • No native cattail, reed, or rush has similar flowers


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