| Specimen ID | 1409473 |
| Group | Plants |
| Genus | Hydrilla |
| Species | verticillata |
| Subspecies | verticillata |
| Common Name | whorled hydrilla |
| State | GA |
| County | Worth |
| Locality | Lake Blackshear, near Swift Creek of the Flint River |
| Mapping Accuracy | Accurate |
| HUC8 Name | Middle Flint |
| HUC8 Number | 03130006 |
| HUC10 Name | Flint River-Lake Blackshear |
| HUC10 Number | 0313000606 |
| HUC12 Name | Lower Swift Creek |
| HUC12 Number | 031300060610 |
| Map | |
| Collection Month | 6 |
| Collection Year | 2017 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Comments | Likely 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 Type | Personal communication |
| Verifier | Rob Weller, Georgia DNR |
| Freshwater/Marine | Freshwater |
| Size | 50-75 acres |
