Species that are considered uncertain risk need a more in-depth assessment beyond the Risk Summary to better define the species’ risk to U.S. environments.
Pontederia rotundifolia, Tropical Pickerelweed, is a tropical aquatic plant that grows in waters and swamps in Central and South America from Mexico to Argentina. P. rotundifolia has been used as an ornamental and has been evaluated for use in treating wastewater. P. rotundifolia is classified by Florida as a Prohibited Aquatic Plant, class 1. P. rotundifolia has not been reported anywhere outside of its native range. History of invasiveness is classified as No Known Nonnative Population. The climate match for the contiguous United States is high. Areas of high match were found along the southern Atlantic Coast, throughout Florida, along the Gulf Coast, and in small areas in coastal Virginia, and the southwest. The certainty of assessment is Low due to a lack of information. The overall risk assessment category for Pontederia rotundifolia is Uncertain.
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Uncertain Risk
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