Specimen Information

Hydrilla verticillata verticillata
Hydrilla verticillata verticillata
(whorled hydrilla)

Specimen ID1397146
Common Namewhorled hydrilla
LocalityDeed-restricted community pond. This pond as well as other affected ponds are inter-connected and flow into the Intra-Coastal Waterway.
Mapping AccuracyAccurate
HUC8 NameDaytona-St. Augustine
HUC8 Number03080201
HUC10 NamePellicer Creek-Tomoka River Frontal
HUC10 Number0308020104
HUC12 NameGraham Swamp
HUC12 Number030802010403
Collection Day4
Collection Month8
Collection Year2010
Year AccuracyActual
Potential Pathwayunknown
Reference 1
Ref. Number:24369
Author:Center for Invasive Species and Ecosystem Health.
Title:EDDMapS: Early detection and distribution mapping system
Publisher:The University of Georgia
CommentsThis area twice was treated by Aquatic Services during low water levels and high temperatures. Hundreds of fish have been dying off that I believe is a combination of low water levels, high water temps as well as invasive plants and algae creating low oxygen levels resulting in a massive fish kill.; EDDMapS report
Record TypeLiterature
VerifierKeith Bradley
Size6 Acres


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Citation information: U.S. Geological Survey. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/28/2024].

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