Hydrilla verticillata verticillata
Hydrilla verticillata verticillata
(whorled hydrilla)
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16 results for Hydrilla verticillata verticillata (whorled hydrilla)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
230879 LACalcasieupond south of Lake Charles1980 08080203 Upper Calcasieuestablished
229153 LALafourcheDes Allemands Oil Field Canal1980 08090301 East Central Louisiana Coastalestablished
230881 LALafourcheLake Long1980 08090302 West Central Louisiana Coastalestablished
230878 LAOrleansAlgiers, drainage canal1980 08090301 East Central Louisiana Coastalestablished
213361 LAPointe CoupeeFalse River Lake1980 08070300 Lower Grandestablished
229148 LASabineToledo Bend Reservoir1980 12010004 Toledo Bend Reservoirestablished
229154 LASt. CharlesMecom Canal, near Bayou Gauche1980 08090301 East Central Louisiana Coastalestablished
229151 LASt. MaryAtchafalaya River Basin1980 08080101 Atchafalayaestablished
229150 LASt. Marycanal near Lake Palourde1980 08090302 West Central Louisiana Coastalestablished
230880 LATerrebonneBayou St. Paul1980 08090302 West Central Louisiana Coastalestablished
230874 LATerrebonneBayou Terrebonne1980 08090302 West Central Louisiana Coastalestablished
229152 LATerrebonneLake Penchant1980 08090302 West Central Louisiana Coastalestablished
213364 LATerrebonneLake Theriot1980 08090302 West Central Louisiana Coastalestablished
230875 LATerrebonneMinors Canal1980 08090302 West Central Louisiana Coastalestablished
230642 MSItawambaTennessee-Tombigbee Waterway, near Fulton1980 03160101 Upper Tombigbeeestablished
213813 TXMontgomeryLake Conroe [just NW of Conroe]1980 12040101 West Fork San Jacintoestablished

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.

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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. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/23/2026].

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