Introduction
Yellow floating hear is native to Europe and Asia and was introduced into Canda and the United States an ornamental plant. Since being introduced it has spread to many states through both intentional and unintentionally methods.
Was first observed in Oklahoma in 1947 in Lake Carl Blackwell.
Impacts
Yellow floating heart can create dense mats that can compete and shade out native aquatic plants, as well as decrease oxygen levels that are important for fish populations. These dense mats can impede boating, fishing, and swimming activities. New populations of yellow floating heart can be established by plant fragments that are carried by boat, trailer, and other gear.
Identification Keys
- Leaves are on stalks and floating on the water’s surface, circular or heart shaped, frequently purplish underneath
- Flowers are stalked and are solitary or in clusters up to 5, bright yellow with 5 petals, located above the surface of the water
- Dense mats that cover entire waterways from the water floor to the surface
