Common Reed


  • Hollow stems
  • Blue-green alternate leaves along top half of stem
  • Dense plumes at top of plant are Christmas tree-shaped
  • Height 6 to 15 feet

Video Information

Weed Pictures

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Weed Information

ControlMowing and aquatic herbicide. Contact your County Weed District or local Applicator for more information.
HabitatInterior wetlands, lake margins, roadside ditches, and other low, wet areas.
RootHorizontal roots producing new shoots.
Leaf ShapeLong, flat and lance-shaped.
LifespanPerennial; two years or longer.
Priority 1A WeedNot present or limited presence in Montana. If you think you’ve found this plant, please contact your county weed coordinator or MT Department of Agriculture immediately!
Similar Looking PlantsNative common reed.
Important InformationNative Phragmites can contain little black spots, which are from a fungus that only affects the native species, so it is a good identifier. Proper identification fo this plant is difficult, so please consult and expert for proper ID.