Specimen Information

Myriophyllum spicatum
Myriophyllum spicatum
(Eurasian watermilfoil)
Plants
Exotic

Specimen ID1932736
GroupPlants
GenusMyriophyllum
Speciesspicatum
Common NameEurasian watermilfoil
StatePA
CountyFayette
LocalityPoint Marion Boat Ramp, Monongahela River
Mapping AccuracyAccurate
HUC8 NameUpper Monongahela
HUC8 Number05020003
HUC10 NamePaw Paw Creek-Monongahela River
HUC10 Number0502000303
HUC12 NameWest Run-Monongahela River
HUC12 Number050200030309
Map
Collection Month10
Collection Year2025
Year AccuracyActual
Reference 1
Ref. Number:46744
Author:Argent, D., R. Whyte, and B. Isaac
Date:2026
Title:Expansion of hydrilla (Hydrilla verticillata) within the Monongahela River system and associated invasive submerged aquatic vegetation
Journal:Invasive Plant Science and Management
Volume:19
Issue:1
Pages:1–5
CommentsDense: 75–100% rake head covered; rapid sampling occurred from October to November of 2025
Record TypeLiterature


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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. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [5/3/2026].

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