Ecological Risk Screening Summary - Vallisneria caulescens (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.

Vallisneria caulescens is a freshwater plant native to Australia. It is present in the aquarium trade internationally. No introductions outside of its native range have been reported; the history of invasiveness is classified as No Known Nonnative Population. Overall climate match with the contiguous United States is Medium. Areas of high match were found along the Mexican border, with areas of medium match in peninsula Florida, the Southwest, and southcentral United States. The certainty of this assessment is Low due to a lack of information regarding this species’ history of invasiveness. The overall risk assessment category for Vallisneria caulescens is Uncertain.