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.
Shrubby primrose-willow (Ludwigia suffruticosa Walter) is a plant found in marshes and along pond edges native to the Southeastern United States (Florida, Alabama, Georgia, South Carolina, and North Carolina) and Mexico. Ludwigia suffruticosa has not been reported as introduced or established anywhere outside of its native range. The history of invasiveness is classified as No Known Nonnative Population. The climate match for the contiguous United States is High. The entire Southeast region of the United States had a high climate match, including the states where it is native. The certainty of the assessment is Low due to a lack of information, possible confusion with a closely named species, and taxonomic uncertainty regarding possible synonyms. The overall risk assessment category for Ludwigia suffruticosa is Uncertain.
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Uncertain Risk
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