Ecological Risk Screening Summary - Damasonium alisma (a plant, no common name) - Uncertain Risk

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.

Damasonium alisma is an annual, aquatic plant native to the United Kingdom, France, Italy, Portugal, Ukraine, Russia, and Kazakhstan. This species is listed as Vulnerable on the IUCN Red List. No information on trade history of this species is available. Damasonium alisma has not been reported anywhere outside of its native distribution, resulting in a history of invasiveness classified as No Known Nonnative Population. The overall climate match for the contiguous United States is High, with a medium to high climate match throughout most of the country. The certainty of assessment is Low due to a lack of information and questions about the full extent of the range. The overall risk assessment category for Damasonium alisma is Uncertain.