Myriophyllum heterophyllum
Myriophyllum heterophyllum
(variable-leaf watermilfoil)
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Native Transplant
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11 results for Myriophyllum heterophyllum (variable-leaf watermilfoil)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1709223 TXWilliamson[No locality description provided]2022 12070205 San Gabriel 
1730182 TXWilliamson[No locality description provided]2023 12070205 San Gabriel 
1749604 TXWilliamson[No locality description provided]2023 12070205 San Gabriel 
1728770 TXWilliamson[No locality description provided]2024 12070205 San Gabriel 
1890746 TXWilliamson[No locality description provided]2025 12070205 San Gabriel 
1892802 TXWilliamson[No locality description provided]2025 12070205 San Gabriel 
1650547 TXWilliamson500 Tom McDaniel Pkwy, Georgetown, TX 78626, USA2018 12070205 San Gabrielestablished
1650640 TXWilliamsonGeorgetown, TX 78626, USA2019 12070205 San Gabrielestablished
1650723 TXWilliamsonGeorgetown, TX 78626, USA2020 12070205 San Gabrielestablished
1650720 TXWilliamsonGeorgetown, TX, USA2020 12070205 San Gabrielestablished
1650637 TXWilliamsonWilliamson, Texas, United States2019 12070205 San Gabrielestablished

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 [1/22/2026].

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