Hydrilla verticillata verticillata
Hydrilla verticillata verticillata
(whorled hydrilla)

8 results for Hydrilla verticillata verticillata (whorled hydrilla)
Download Data
Click here for listing in all states

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1672768 LAAvoyelles[No locality description provided]2019 08080101 Atchafalaya 
230885 LAIberia/St. MartiBayou Lafourche (Fourche)1996 08080101 Atchafalayaestablished
233752 LASt. MartinFlat Lake1998 08080101 Atchafalayaestablished
230886 LASt. MartinGrand Lake1995 08080101 Atchafalayaestablished
1256871 LASt. MartinHenderson Lake1994 08080101 Atchafalayaestablished
213359 LASt. MartinHenderson Lake1998 08080101 Atchafalayaestablished
229151 LASt. MaryAtchafalaya River Basin1980 08080101 Atchafalayaestablished
235583 LASt. MaryEdge of channel in Catfish Pass in the Atchafalaya Delta Wildlife Management Area in Atchafalaya Bay south of Morgan City.2000 08080101 Atchafalayaestablished

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.


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. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [5/22/2024].

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.