Hygrophila polysperma
Hygrophila polysperma
(Indian swampweed)
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Exotic
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52 results for Hygrophila polysperma (Indian swampweed)
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Page:123
Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1615757 FLHillsborough[No locality description provided]2018 03100205 Hillsboroughestablished
1616172 FLHillsborough[No locality description provided]2019 03100205 Hillsboroughestablished
1875745 FLHillsborough[No locality description provided]2024 03100205 Hillsborough 
1888958 FLHillsborough[No locality description provided]2025 03100205 Hillsborough 
214849 FLHillsboroughHillsborough River1982 03100205 Hillsboroughestablished
215887 FLHillsboroughHillsborough River1983 03100205 Hillsboroughestablished
218284 FLHillsboroughHillsborough River1984 03100205 Hillsboroughestablished
219127 FLHillsboroughHillsborough River1986 03100205 Hillsboroughestablished
221903 FLHillsboroughHillsborough River1988 03100205 Hillsboroughestablished
224347 FLHillsboroughHillsborough River1990 03100205 Hillsboroughestablished
1474907 FLHillsboroughHillsborough River (above reservoir)1982 03100205 Hillsboroughestablished
1474408 FLHillsboroughHillsborough River (above reservoir)1983 03100205 Hillsboroughestablished
1474415 FLHillsboroughHillsborough River (above reservoir)1984 03100205 Hillsboroughestablished
1474671 FLHillsboroughHillsborough River (above reservoir)1986 03100205 Hillsboroughestablished
1474943 FLHillsboroughHillsborough River (above reservoir)1988 03100205 Hillsboroughestablished
1474615 FLHillsboroughHillsborough River (above reservoir)1990 03100205 Hillsboroughestablished
1474974 FLHillsboroughHillsborough River (above reservoir)1994 03100205 Hillsboroughestablished
1474451 FLHillsboroughHillsborough River (above reservoir)1995 03100205 Hillsboroughestablished
1474502 FLHillsboroughHillsborough River (above reservoir)1996 03100205 Hillsboroughestablished
1474468 FLHillsboroughHillsborough River (above reservoir)1997 03100205 Hillsboroughestablished
1475001 FLHillsboroughHillsborough River (above reservoir)1998 03100205 Hillsboroughestablished
1474995 FLHillsboroughHillsborough River (above reservoir)1999 03100205 Hillsboroughestablished
1474816 FLHillsboroughHillsborough River (above reservoir)2000 03100205 Hillsboroughestablished
1475042 FLHillsboroughHillsborough River (above reservoir)2001 03100205 Hillsboroughestablished
1474555 FLHillsboroughHillsborough River (above reservoir)2002 03100205 Hillsboroughestablished
Page:123

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are 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 data.

Disclaimer:

The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/9/2025].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted.

For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.