Specimen Information

Myriophyllum spicatum
Myriophyllum spicatum
(Eurasian watermilfoil)
Plants
Exotic

Specimen ID229937
GroupPlants
GenusMyriophyllum
Speciesspicatum
Common NameEurasian watermilfoil
StateIA
CountyHancock
LocalityCrystal Lake
Mapping AccuracyAccurate
HUC8 NameUpper Iowa
HUC8 Number07080207
HUC10 NameWest Branch Iowa River
HUC10 Number0708020701
HUC12 NameHeadwaters West Branch Iowa River
HUC12 Number070802070101
Map
+
Collection Year1993
Year AccuracyActual
Potential Pathwayhitch hiker on small watercraft
Statusextirpated
CommentsSonar whole lake in 1994 - no EWM observed.
Record TypePersonal communication
Earliest Recordstate
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 [3/2/2021].

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.