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.
Ludwigia hyssopifolia, the Seedbox, is an erect annual herb that can be found in wetlands. It has been cultivated and used in traditional medicine. It is widely distributed across Central and South America, Africa, Southeast Asia, India, Australia, and several pacific islands. There is consensus that it is native to Central and South America but disagreement on if it is native or introduced in the other parts of its range. It has been introduced to Spain and become established. In Africa and Asia, it is a major agricultural pest, however, there is no impact information available for the introduction in Spain. The history of invasiveness is classified as Data Deficient. The overall climate match for the contiguous United States was High. Areas of high match were found along the Gulf and southern Atlantic coasts. The certainty of assessment is Low due to the conflicting information regarding the species’ native range and a lack of information on impacts from introductions. The overall risk assessment category is Uncertain.
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Uncertain Risk
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