Flowering Rush


  • Flowers on round, erect stem
  • Will flower in shallow waters, but not at deeper depths
  • 20-50 purple to pink flowers grow in a round cluster that resembles an umbrella
  • Height 1 – 4 feet

Weed Pictures

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Weed Information

ControlMechcanical, biological, grazing and herbicide. Contact your County Weed District or local Applicator for more information.
HabitatLake shores, slow moving waters, irrigation ditches and wetlands.
RootReproduction by seed, vegetative bulbs on roots and flowers and by fragmentation of the roots.
Leaf ShapeLance-shaped, smooth edges, triangular in cross-cut with twisted ends.
LifespanPerennial; two years or longer.
Priority 2A WeedCommon in isolated areas of Montana.
Similar Looking PlantsBulrushes and true rushes.
Important InformationIt is a very prolific plant. In deeper water, the plant grows submerged with floating leaves. It is believed that this plant will soon infest the entire Columbia River system.