Myriophyllum spicatum
Myriophyllum spicatum
(Eurasian watermilfoil)
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175 results for Myriophyllum spicatum (Eurasian watermilfoil)
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Click here for listing in all states

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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
252720 CA Truckee River2001 16050102 Truckeeestablished
230863 CA San Francisco Delta1994 18050004 San Francisco Bayestablished
1705613 CAAlameda[No locality description provided]2022 18050004 San Francisco Bay 
1436349 CAAlamedaLake Chabot Regional Park eat of San Leandro2010 18050004 San Francisco Bayestablished
229250 CAAlamedaSan Francisco Bay Area1993 18050004 San Francisco Bayestablished
1436145 CAAlamedaShadow Cliff Lake in Pleasanton.2001 18050004 San Francisco Bayestablished
252722 CAAlamedaShadow Cliffs Lake2001 18050004 San Francisco Bayestablished
1634054 CAButte[No locality description provided]2020 18020159 Honcut Headwaters-Lower Featherestablished
252699 CAButte6 miles south of Chico, irrigation ditch, on w side of Goodspeed Watt Rd1979 18020158 Butte Creekcollected
1436121 CAButteabout 1 mi N and 2 3/4 mi E of Honcut (Peter Ahart Ranch, W side of North Honcut Creek)2001 18020159 Honcut Headwaters-Lower Featherestablished
1440725 CAButteArroyo Chico Land Grant. Northern Sacramento Valley; ca. 6.0 air-miles west by southwest of Chico, ca. 2.3 air-miles south of State Hwy 32, east bank of Sacramento River, Bidwell-Sacramento River State Park.2003 18020157 Big Chico Creek-Sacramento Riverestablished
252756 CAButteBidwell-Sacramento River State Park, W of Chico2003 18020157 Big Chico Creek-Sacramento Riverestablished
1441121 CAButteFernandez Grant. East border of the large pond in the Oroville Wildlife Area on the west side of the Feather River between the levels of Walnut and Biggs Ave.1988 18020159 Honcut Headwaters-Lower Featherestablished
1436339 CAButteFernandez Grant. East border of the large pond in the Oroville Wildlife Area on the west side of the Feather River between the levels of Walnut and Biggs Ave.1988 18020159 Honcut Headwaters-Lower Featherestablished
252703 CAButteGray Lodge Waterfowl Management Area (formerly Greylodge Game Refuge)1982 18020158 Butte Creekcollected
252707 CAButteGray Lodge Waterfowl Management Area (formerly Greylodge Game Refuge)1989 18020158 Butte Creekestablished
1436170 CAButteGraylodge Waterfowl Refuge, at end of West Liberty Rd, ca. 12 mi sw of Gridley.1982 18020158 Butte Creekestablished
1436212 CAButteIn a deep drain ditch, along the Biggs Princeton Highway, under P. G. and E. power lines, about 1 mile west of Biggs.1987 18020158 Butte Creekestablished
252705 CAButtenear Biggs1987 18020158 Butte Creekestablished
1436195 CAButteOn the sides but near the top of a large canal, about 100 yards north of East Gridley Road, on the west side of the Feather River, about 2 miles east of Gridley.2014 18020159 Honcut Headwaters-Lower Featherestablished
1436133 CAButteOn the west side of North Honcut Creek, Peter Ahart Ranch, about 1 mile north and 2 3/4 miles east of Honcut, about 12 miles SE of Oroville.2001 18020159 Honcut Headwaters-Lower Featherestablished
252706 CAButteOroville Wildlife Area on the west side of the Feather River between the levels of Walnut and Biggs Ave1988 18020159 Honcut Headwaters-Lower Feathercollected
252700 CAButteRichvale vernal pools1980 18020158 Butte Creekcollected
1436171 CAButteRichvale Vernal Pools, 1/4 mi s of jct of Hwy 162 to Oroville and Hwy 99, along latter and across from Thermalito Afterbay.1980 18020158 Butte Creekestablished
1436211 CAButteScattered on edge of ricefield. Ca. 6 mi s of Chico, on w side of Goospeed-Watt Rd.1979 18020158 Butte Creekestablished
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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. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/3/2024].

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For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.