Specimen Information

Hydrilla verticillata verticillata
Hydrilla verticillata verticillata
(whorled hydrilla)

Specimen ID1407108
Common Namewhorled hydrilla
LocalityCypress Creek, adjacent to the left descending bank, approximately 300 feet south of Eunice Avenue, a street within the municipality of Florence, Alabama
Mapping AccuracyAccurate
HUC8 NamePickwick Lake
HUC8 Number06030005
HUC10 NameCypress Creek
HUC10 Number0603000506
HUC12 NameCox Creek-Cypress Creek
HUC12 Number060300050605
Collection Day14
Collection Month6
Collection Year2017
Year AccuracyActual
Potential Pathwayreleased aquarium
CommentsI have fished in this creek for over 10 years and this observation, together with a second separately reported this date (with personal credentials) are the first I have noted. This infestation consisted of several scattered small patches, none larger than about 3 square feet.I did not photograph it, since I was wading and did not want to risk getting my camera wet.I filed an earlier report this date concerning a second, considerably larger, infestation of E. densa a short distance downstream from this site.
Record TypeNAS sighting report


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Citation information: U.S. Geological Survey. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/24/2024].

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