Specimen Information

Myriophyllum heterophyllum
Myriophyllum heterophyllum
(variable-leaf watermilfoil)
Native Transplant

Specimen ID1418388
Common Namevariable-leaf watermilfoil
LocalityHogan Pond
Mapping AccuracyAccurate
HUC8 NameLower Androscoggin River
HUC8 Number01040002
HUC10 NameLittle Androscoggin River
HUC10 Number0104000209
HUC12 NameWhitney Pond
HUC12 Number010400020906
Collection Month6
Collection Year2002
Year AccuracyActual
Potential Pathwayhitch hiker on small watercraft | dispersed waterfowl
Reference 1
Ref. Number:30401
Author:Schaffner, B.
Title:Maine DEP Invasive Aquatic Plant Map
Publisher:Maine Department of Environmental Protection
CommentsDiscovery 2002: A lake association member reported milfoil which was confirmed by DEP. Variable-leaf milfoil is in Hogan Pond and the outlet stream between Hogan and Whitney Ponds. Currently managed with Diver Assisted Suction harvester and barriers.
Record TypeLiterature
Earliest Recordlocale
VerifierMaine DEP


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 [6/26/2022].

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 general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.