Invasive Species: Carolina Fanwort
*Detected in Michigan*
Report this species:
Use the Midwest Invasive Species Information Network (MISIN) online reporting tool.
- Or - download the MISIN smartphone app and report from your phone - MISIN.MSU.edu/tools/apps/#home.
- Submerged aquatic plant, rooted in the mud of stagnant or slow-flowing water.
- Underwater leaves approximately 2 inches across and divided into fine branches.
- Flowering branches grow above the water surface with diamond shaped leaves.
- Flowers small and range from white to pale yellow.
- Stem length usually less than 10 feet but can reach 33 feet.
Photo courtesy of Leslie J Mehrhoff, University of Connecticut, Bugwood.org.
Photo courtesy of Robert Videki, Doronicum Kft., Bugwood.org.
Photo courtesy of Leslie J. Mehrhoff, University of Connecticut, Bugwood.org.
Habitat: This submerged aquatic plant roots itself into the mud of shallow, slow moving or stagnant freshwater ecosystems.
Native Range: Southern Brazil, Uruguay, Paraguay, Argentina and the southeastern United States
Local Concern: Dense mats alter oxygen and pH levels, reduce sunlight penetration and interfere with recreational water use.
Means of Introduction: Aquarium and water garden trades, recreational equipment.
Other Names: Fanwort, fish grass, green cabomba, Carolina water-shield, Washington-plant and Washington grass.
Status and Strategy for Carolina Fanwort Management This document provides in-depth information about Carolina fanwort in Michigan including identification, distribution, management and control options.
MDARD Weed Risk Assessment for Carolina Fanwort (Cabomba caroliniana) - This document evaluates the invasive potential of the plant species using information based on establishment, spread and potential to cause harm.