Specimen Information

Hydrilla verticillata [dioecious]
Hydrilla verticillata [dioecious]
(dioecious hydrilla)

Specimen ID1409473
Speciesverticillata [dioecious]
Common Namedioecious hydrilla
LocalityLake Blackshear, near Swift Creek of the Flint River
Mapping AccuracyAccurate
HUC8 NameMiddle Flint
HUC8 Number03130006
HUC10 NameFlint River-Lake Blackshear
HUC10 Number0313000606
HUC12 NameLower Swift Creek
HUC12 Number031300060610
Collection Month6
Collection Year2017
Year AccuracyActual
Potential Pathwayhitch hiker on small watercraft
CommentsLikely in the Flint drainage for many years prior. There is currently 50-75 acres of hydrilla in Lake Blackshear. Chemical treatment is being used as a control measure. Crisp County Power owns Lake Blackshear and they contract with Estate Management Services to manage aquatic vegetation.
Record TypePersonal communication
VerifierRob Weller, Georgia DNR
Size50-75 acres


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Citation information: U.S. Geological Survey. [2022]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [10/7/2022].

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