Learn how to identify yellow floating heart and how to prevent the introduction or spread of this aquatic plant in local waterways.The flowers consist of five bright yellow petals and the seed capsules contain numerous flat, oval seeds.The leaves are circular or heart shaped and about 3–10 cm, which float on the surface of the water.It is located below the surface of the water.The stems are long and branched, reaching up to one metre or more.It is an aquatic, bottom-rooted perennial plant.Recreational activities, such as boating and swimming, may become difficult with dense mats, which are costly to remove.The yellow floating heart can change the chemical composition of their waterbodies.Yellow floating heart is able to take up nutrients from the soil and release them into the water during the growing season which can lead to eutrophication (an increase in nutrient concentration in the water leading to excessive plant and algae growth).The dense areas of yellow floating heart can reduce native vegetation and food available to aquatic life.View an up-to-date distribution map of yellow floating heart in North America. In Ontario, there has been a series of reported infestations in Mississauga and Halton Hills, located in the Great Lakes basin west of Toronto. It has become established in Canadian provinces, including: Yellow floating heart can spread through plant fragments and produce large numbers of seeds, allowing it to quickly establish large numbers in newly introduced areas. movement of watercraft carrying plants between waterbodies.Usually growing at water depths of 1–1.5 m, these plants are tolerant of low temperatures, allowing them to persist in areas with cold climates, such as Ontario. Yellow floating heart is a floating aquatic plant found in still or slow-moving rivers, lakes, ponds, and artificial habitats, including ditches and canals. ![]() Learn about the Invasive Species Act and regulations. To prevent the further spread of this species in the province, Ontario has regulated yellow floating heart ( Nymphoides peltate) as a restricted invasive species under the Invasive Species Act, 2015.
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