Common name: six petal water primrose
Synonyms and Other Names: Ludwigia grandiflora ssp. hexapetala (Hook. & Arn.) G.L. Nesom & Kartesz
available through www.itis.gov
Identification: Bright yellow blooms
Size: 90-120 cm
Native Range: Ludwigia hexapetala is native to South America.
There is questions if the species is native to the southeastern US. Its earliest records date to South Carolina in 1844 and Georgia in 1864; its unclear if these records reflect a lack of early collections or introductions (Jacono 2014).
Hydrologic Unit Codes (HUCs) Explained
Puerto Rico &
Interactive maps: Point Distribution Maps
Table 1. States with nonindigenous occurrences, the earliest and latest observations in each state, and the tally and names of HUCs with observations†. Names and dates are hyperlinked to their relevant specimen records. The list of references for all nonindigenous occurrences of Ludwigia hexapetala are found here.
Table last updated 9/18/2021
† Populations may not be currently present.
Means of Introduction: The ornamental plant trade (Jacono 2014).
Impact of Introduction:
Summary of species impacts derived from literature review. Click on an icon to find out more...
Procopio, J. and Daniel, W.M.
Revision Date: 7/24/2019
Procopio, J. and Daniel, W.M., 2021, Ludwigia hexapetala (Hook. & Arn.) Zardini, H.Y. Gu & P.H. Raven: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=2979, Revision Date: 7/24/2019, Access Date: 9/18/2021
This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.