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Learning about noxious weeds found in Mesa County helps our community be a part of identifying and reporting these weeds to keep them out of our landscapes and minimize their damage to our environment. The flowering rush invades wetlands and streambanks and is a host plant to the organisms that cause “swimmer’s itch.”  Leach Creek in Grand Junction is Colorado’s only known location of flowering rush infestations, making eradication possible. 

Identification features of the flowering rush:

  • Cluster of pink flowers with six petals
  • Triangle-shaped leaves and round flowering stems
  • Flowers July through September
  • Perennial aquatic

Reporting sightings of the flowering rush is crucial in protecting our waterways from this harmful weed. 

Please report any suspected sightings to Mesa County Noxious Weed and Pest Management at weed.pest@mesacounty.us or call 970-255-7121. Mesa County Noxious Weed and Pest Management offers private property owners free management assistance with the flowering rush.

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Small bunch of light pink flowering rush noxious weed in a wetland.