Hydrilla verticillata
Hydrilla verticillata
(hydrilla)
Plants
Exotic
Collection Info
Point Map
Species Profile
Animated Map
Impacts

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

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1889766 DEKent[No locality description provided]2025 02040207 Broadkill-Smyrna 
234380 DEKentDelaware State College in Dover, pond PL-28, C.S.R.S. fisheries project1985 02040207 Broadkill-Smyrnaestablished
269510 DEKentGriffith Lake2010 02040207 Broadkill-Smyrnaestablished
1695230 DEKentPrivate Pond1998 02040207 Broadkill-Smyrnaunknown
1695240 DEKentPrivate Pond2014 02040207 Broadkill-Smyrnaunknown
1695242 DEKentPrivate Pond2018 02040207 Broadkill-Smyrnaunknown
1695235 DEKentPublic Pond2001 02040207 Broadkill-Smyrnaunknown
229725 DEKentTubmill Pond, Milford1995 02040207 Broadkill-Smyrnaestablished
1891065 DESussex[No locality description provided]2025 02040207 Broadkill-Smyrna 
1891096 DESussex[No locality description provided]2025 02040207 Broadkill-Smyrna 
269505 DESussexAbbotts Pond2010 02040207 Broadkill-Smyrnaestablished
269506 DESussexBlairs Pond2010 02040207 Broadkill-Smyrnaestablished
1403607 DESussexWagamons Pond, Milton2000 02040207 Broadkill-Smyrnaestablished
232299 DESussexWaples Pond, Milton1984 02040207 Broadkill-Smyrnaestablished
229724 DESussexWaples Pond, Milton1995 02040207 Broadkill-Smyrnaestablished

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 [12/5/2025].

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.