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.
Guppy grass (Najas indica) is an aquatic plant found in freshwater ponds, lakes, and paddy fields across southern and Southeast Asia and northern Oceania. It can also tolerate brackish water. N. indica is present in the aquarium trade in the United States and has been investigated for its potential use as a phytoremediator. This species has not been reported as introduced or established outside of its native range; therefore, the history of invasiveness is No Known Nonnative Population. Overall climate match with the contiguous United States was medium, with predominant medium to high match in the East (particularly high in the coastal Southeast) and low match in the Western States. Certainty of assessment is low due to lack of information. The overall risk assessment category is Uncertain.
Publication date
Type of document
Uncertain Risk
Program
