Hydrilla verticillata
Hydrilla verticillata

167 results for Hydrilla verticillata (hydrilla)
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Specimen IDCommon NameStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1439633 whorled hydrillaCACalaveras0.625 mi S/ Hwy 12 on Pettinger Rd, Ghiradelli pond.1988 18040003 San Joaquin Deltaeradicated
1438475 whorled hydrillaCACalaveras19325 Jesus Maria Rd, Mountain Ranch.2002 18040011 Upper Calaveras Californiaeradicated
1437570 whorled hydrillaCACalaveras7858 Bollea Rd. in pond.2004 18040003 San Joaquin Deltaeradicated
1438624 whorled hydrillaCACalaverasBollea Rd, Private property.1996 18040003 San Joaquin Deltaeradicated
1438394 whorled hydrillaCACalaverasBollea Rd.2001 18040003 San Joaquin Deltaeradicated
1438680 whorled hydrillaCACalaverasBollea Rd.2003 18040003 San Joaquin Deltaeradicated
1437527 whorled hydrillaCACalaverasBollea Rd.2008 18040003 San Joaquin Deltaeradicated
1440848 whorled hydrillaCACalaverasBurson Rd, Kraft pond.1988 18040003 San Joaquin Deltaeradicated
1438583 whorled hydrillaCACalaverasCarl Kerstan. Still Water, Pond, Or Lake. , 19325 Jesus Mana Rd., Mokelumne Hill., confirm hydilla. 1st find of season here.. PDR P1753802003 18040011 Upper Calaveras Californiaeradicated
1438516 whorled hydrillaCACalaverasDave Hesseltine. Still Water, Pond, Or Lake. , 7858 Bollea Road, Wallace., please confirm suspect hydrilla from existing project site. PDR 13669272004 18040003 San Joaquin Deltaeradicated
1439834 whorled hydrillaCACalaverasHwy 12, Perock pond.1988 18040003 San Joaquin Deltaeradicated
1438518 whorled hydrillaCACalaverasJesus Maria Rd.2002 18040011 Upper Calaveras Californiaeradicated
1438870 whorled hydrillaCACalaverasMessing Rd, Holmes pond.1988 18040003 San Joaquin Deltaeradicated
1439031 whorled hydrillaCACalaverasPrivate pond on Jesus Maria Rd.1988 18040011 Upper Calaveras Californiaeradicated
1438585 whorled hydrillaCACalaverasSierra Nevada 19325 Jesus Maria Rd, Mountain Ranch.. Data provided by the participants of the Consortium of Calif. Herbaria (ucjeps.berkeley.edu/consortium/).2002 18040011 Upper Calaveras Californiaeradicated
1439443 whorled hydrillaCACalaverasSouthworth Rd, Baker Valley Ranch pond.1988 18040003 San Joaquin Deltaeradicated
1439234 whorled hydrillaCACalaverasSouthworth Rd, Whalen pond.1988 18040003 San Joaquin Deltaeradicated
1437406 whorled hydrillaCAImperial. Flowing Water, Stream Bank, Ditch Bank. Lyons & Brockman Rd, Wisteria 7 Drain, El Centro., please id aquatic weed. PDR 12646382005 18100204 Salton Seaeradicated
1438587 whorled hydrillaCAImperialAll American Canal at Calexico.1977 18100204 Salton Seaeradicated
1437730 whorled hydrillaCAImperialAll American Canal, at Calexico1977 18100204 Salton Seaeradicated
1437432 whorled hydrillaCAImperialAll American Canal, west side of Meadows Road, 0.8 km south of Cole Road, 4 km northeast of Calexico1977 18100204 Salton Seaeradicated
1438676 whorled hydrillaCAImperialAll American Canal.1977 18100204 Salton Seaeradicated
1437536 whorled hydrillaCAImperialBaughman-Hovley NE Corner.1990 18100204 Salton Seaeradicated
228957 whorled hydrillaCAImperialCentral Main Canal, Calexico1981 18100204 Salton Seaeradicated
1438005 whorled hydrillaCAImperialColorado River Valley, All-American Canal1977 15030107 Lower Coloradoeradicated

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. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/21/2024].

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