Myriophyllum spicatum
Myriophyllum spicatum
(Eurasian watermilfoil)

9 results for Myriophyllum spicatum (Eurasian watermilfoil)
Download Data
Click here for listing in all states

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1398745 ARChicot[no locality given]2011 08050001 Boeufunknown
1337703 ARDeshaArkansas River2015 08020401 Lower Arkansasunknown
887715 ARGarlandLake Hamilton1996 08040101 Ouachita Headwatersestablished
887729 ARGarlandLake Ouachita1996 08040101 Ouachita Headwatersestablished
887731 ARGarlandLake Ouachita1996 08040101 Ouachita Headwatersestablished
887730 ARGarlandLake Ouachita1996 08040101 Ouachita Headwatersestablished
242960 ARGarlandLake Ouachita2006 08040101 Ouachita Headwatersestablished
229365 ARGarlandLake Ouachita, Brady Mtn. Resort Marina, Ouachita National Forest1997 08040101 Ouachita Headwatersestablished
1632596 ARJohnson[No locality description provided]2019 11110202 Dardanelle Reservoirestablished

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. [2023]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [9/28/2023].

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.