Specimen Information

Myriophyllum spicatum
Myriophyllum spicatum
(Eurasian watermilfoil)
Plants
Exotic

Specimen ID252740
GroupPlants
GenusMyriophyllum
Speciesspicatum
Common NameEurasian watermilfoil
StateCA
CountyMarin
LocalityBon Tempe Lake
Mapping AccuracyAccurate
HUC8 NameTomales-Drake Bays
HUC8 Number18050005
HUC10 NameLagunitas Creek
HUC10 Number1805000501
HUC12 NameKent Lake-Lagunitas Creek
HUC12 Number180500050101
Map
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Collection Day1
Collection Month8
Collection Year2006
Year AccuracyActual
Potential Pathwayhitch hiker | released aquarium
Statusestablished
Reference 1
Ref. Number:17896
Author:Prado, M.
Date:2008
Title:Weed-eating weevils to prove their worth with invasive milfoil.
Publisher:Marin Independent Journal, Novato, California.
Volume:2008
Issue:June 15
Reference 2
Ref. Number:17898
Author:Anonymous
Date:2007
Title:Aquatic weed assessment for the Marin Municipal Water District’s seven reservoirs.
Publisher:Aquatic Environments, Inc, Concord, California.
Volume:2007
Issue:July 31
Pages:47 pp
CommentsSpread around entire margin of lake. Milfoil weevils discovered in Bon Tempe Lake and Lake Lagunitas in 2007 - first discovery in California; may have been introduced with EWM.
Record TypeLiterature
Earliest Recorddrainage
Freshwater/MarineFreshwater
Specimen Impactnoted as nuisance to anglers; likely altering carbon cycle.


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. [2022]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/20/2022].

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.