Specimen Information

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

Specimen ID1418372
Common Namevariable-leaf watermilfoil
LocalityCollins Pond
Mapping AccuracyAccurate
HUC8 NamePresumpscot
HUC8 Number01060001
HUC10 NamePresumpscot River
HUC10 Number0106000103
HUC12 NameLittle Sebago Lake-Pleasant River
HUC12 Number010600010301
Collection Month6
Collection Year2004
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 confirmed 2004. Collins Pond is downstream from Little Sebago Lake. DNA testing of a sample from Collins Pond confirms that the hybrid milfoil is present. 2010: Present C.P. Association continues to manage the infestation using benthic barriers & diver-assisted suction.
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. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [6/22/2024].

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.