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Yellow Floating-Heart

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Presentation by MDC biologist on the invasive plant species Yellow Floating-Heart.

Presentation by MDC biologist on the invasive plant species Yellow Floating-Heart.

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  • 1. Yellow Floating-Heart Nymphoides peltata Darren R. Thornhill Fisheries Management Biologist MO Dept. of Conservation 3500 S Baltimore St. Kirksville, MO 63501
  • 2. What does it look like?• Round to heart-shaped leaves (3-12 cm diameter) – Undersides are often purple• Two to five yellow flowers (2-4 cm diameter) – Fringed petals (5) above water surface – Flowers May to October
  • 3. Ecology• Reproduces by seed and fragmentation• Prefers slow moving water and/or damp mud• Found in depths ranging from 0 to 4 meters• Develops dense, monotypic mats
  • 4. How did it get here?• Native of eastern Asia and the Mediterranean• Sold and cultivated in New England as a water garden plant in 1890’s• First noted in western states in 1930 (Long Lake, Washington)• Commonly cultivated and sold for ornamental use in ponds
  • 5. How do we get rid of it?• Prevention is paramount!• Biological control is unknown• Mechanical control is not recommended• Chemical control is preferred – Dichlobenil (effective, but not labeled for aquatic) – Glophosate (requires multiple treatments) – Imazapyr (requires multiple treatments)

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