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.
Frogbit (Hydrocharis dubia) is an aquatic perennial plant species native to eastern Asia, from Russia to Papua New Guinea. Hyrdocharis dubia has become naturalized in Australia. It is also recorded as introduced to India but no information on establishment was found. No impacts of introduction have been documented. H. dubia has been used in agriculture as fodder and a green manure; it has also been used in water treatment projects. No information on this species in trade was found. The history of invasiveness is classified as Data Deficient. The overall climate match for the contiguous United States was high, with high match generally being found in the central States and in parts of the Southeast. The certainty of assessment is Low due to limited available information on H. dubia. The overall risk assessment category for Hydrocharis dubia is Uncertain.
Publication date
Type of document
Uncertain Risk
Program
