Myriophyllum spicatum
Myriophyllum spicatum
(Eurasian watermilfoil)
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196 results for Myriophyllum spicatum (Eurasian watermilfoil)
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Specimen IDCommon NameStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
232390 Eurasian watermilfoilALBaldwincanals off the lower Fish River, S of Waterhole Branch1997 03160205 Mobile Bayestablished
230396 Eurasian watermilfoilALBaldwinMobile Bay, reaching into the bay south of the I-10 and 98 bridges.1997 03160205 Mobile Bayestablished
229365 Eurasian watermilfoilARGarlandLake Ouachita, Brady Mtn. Resort Marina, Ouachita National Forest1997 08040101 Ouachita Headwatersestablished
228591 Eurasian watermilfoilAZLa PazColorado River Indian Tribe Reservation1997 15030104 Imperial Reservoirestablished
229354 Eurasian watermilfoilAZYavapaiPecks Lake1997 15060202 Upper Verdeestablished
252712 Eurasian watermilfoilCAImperialWest of Highway 115, along the Redwood Canal, W of the Alamo River1997 18100204 Salton Seacollected
1436122 Eurasian watermilfoilCAImperialWest of Hwy 115; along the Redwood Canal; just W of the Alamo River between Butler Rd. & McKim Rd.1997 18100204 Salton Seaestablished
252710 Eurasian watermilfoilCALos AngelesSan Gabriel Mtns, San Gabriel River Canyon: below Morris Dam1997 18070106 San Gabrielcollected
879843 Eurasian watermilfoilCALos AngelesSan Gabriel River Canyon, north of Azusa1997 18070106 San Gabrielestablished
1436109 Eurasian watermilfoilCALos AngelesSan Gabriel River Canyon: N of Azusa; parallel to Hwy 39; canyon bottom and adjacent slopes along unnamed dirt access road to gaughing stn. Below Morris Dam.1997 18070106 San Gabrielestablished
252711 Eurasian watermilfoilCASonomaNorth Coast Biodiversity Arena, NW base of Mt. St. Helena1997 18010110 Russiancollected
1702021 Eurasian watermilfoilDCDistrict of ColumbiaPotomac River between Arlington Memorial Bridge and Chain Bridge1997 02070010 Middle Potomac-Anacostia-Occoquan 
230345 Eurasian watermilfoilDENew CastleKirkwood, in a pond along the C & D canal, near the town of Kirkwood.1997 02040205 Brandywine-Christinaestablished
1486240 Eurasian watermilfoilFLBayDeer Point Lake1997 03140101 St. Andrew-St. Joseph Baysestablished
1486399 Eurasian watermilfoilFLBayEconfina Creek1997 03140101 St. Andrew-St. Joseph Baysestablished
1486251 Eurasian watermilfoilFLCitrusChassahowitzka River1997 03100207 Crystal-Pithlachascoteeestablished
1486456 Eurasian watermilfoilFLCitrusCrystal River1997 03100207 Crystal-Pithlachascoteeestablished
1486481 Eurasian watermilfoilFLCitrusHalls River1997 03100207 Crystal-Pithlachascoteeestablished
1486393 Eurasian watermilfoilFLCitrusHomosassa River (Springs)1997 03100207 Crystal-Pithlachascoteeestablished
1486433 Eurasian watermilfoilFLDixieSuwannee River (lower segment)1997 03110205 Lower Suwanneeunknown
1486254 Eurasian watermilfoilFLFranklinApalachicola River1997 03130011 Apalachicolaunknown
1486477 Eurasian watermilfoilFLPascoPithlachascotte River1997 03100207 Crystal-Pithlachascoteeunknown
1486237 Eurasian watermilfoilFLSanta RosaEscambia River1997 03140305 Escambiaestablished
1486511 Eurasian watermilfoilFLSanta RosaYellow River1997 03140103 Yellowunknown
1486388 Eurasian watermilfoilFLWakullaOchlockonee River1997 03120003 Lower Ochlockoneeunknown
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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. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/15/2025].

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.