Specimen Information

Hydrilla verticillata
Hydrilla verticillata
(monoecious hydrilla)

Specimen ID1670503
Common Namemonoecious hydrilla
LocalityDow Lake
Mapping AccuracyAccurate
HUC8 NameHocking
HUC8 Number05030204
HUC10 NameFourmile Creek-Hocking River
HUC10 Number0503020410
HUC12 NameWillow Creek-Hocking River
HUC12 Number050302041001
Collection Day8
Collection Month8
Collection Year2015
Year AccuracyActual
Potential Pathwayhitch hiker on small watercraft
CommentsHydrilla discovered by Ohio DNR in 2015. Hydrilla was found on the shoreline all the way around the lake and was completely covering the two coves in upper part of the lake and the back of the boaters cove on the north end of the lake totaling 24.3 acres (9.8/ha).
Record TypeNAS sighting report
Earliest Recordlocale
VerifierMark Warman, Cleveland Metroparks
Size24.3 acres


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. [2023]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [10/3/2023].

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