Specimen Information

Myriophyllum spicatum
Myriophyllum spicatum
(Eurasian watermilfoil)
Plants
Exotic

Specimen ID238278
GroupPlants
GenusMyriophyllum
Speciesspicatum
Common NameEurasian watermilfoil
StateIA
CountyBremer
LocalitySweet Marsh
Mapping AccuracyAccurate
HUC8 NameUpper Wapsipinicon
HUC8 Number07080102
HUC10 NameEast Branch Wapsipinicon River
HUC10 Number0708010203
HUC12 NameLower East Branch Wapsipinicon River
HUC12 Number070801020303
Map
+
Collection Year1997
Year AccuracyActual
Potential Pathwayhitch hiker on small watercraft
Statuseradicated
CommentsMultiple chemical and physical treatments since 1997; EWM observed most years in reservoir and Martens Lake channel.
Record TypePersonal communication
Earliest Recordlocale
Freshwater/MarineFreshwater


Disclaimer:

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. [2021]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [6/12/2021].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted. For queries involving fish, please contact Matthew Neilson. For queries involving invertebrates, contact Amy Benson.