Invasive SpeciesVariable watermilfoil

Myriophyllum heterophyllum
FOUND by 65AL56H
ID Confirmed
Quality checked by 65AL56H
Peer reviewed by
Field Notes
The last day of school I learned about Invasive Aquatic Plants and they said if the plant has three or more leaflets it may be a red flag. This plant (Variable Milfoil) had five leaflets.Lake Arrowhead was also known for Variable Milfoil which spread all over the lake causing a threat to Little Ossipee (another lake about 25 feet away).
Supporting Evidence
Photo of my evidence.
The Variable Milfoil has five leaflets and Native plants usually have three or less.
Photo of my evidence.
The Variable Water Milfoil looks like a Raccoon tail. (Fox tail)
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Myriophyllum heterophyllum
Common name:
Variable watermilfoil
Sampling method: 
Just looking around
Photo of our sampling method.
Place Studied
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Map this species
N 43.646124 °
W -70.731074 °
Observation Site Information
A photo of our study site.
Freshwater - In a developed area
Trip Information
Variable Milfoil
Trip date: 
Fri, 2016-08-26 20:08
Town or city: 
Type of investigation: 
Species Survey
MIDAS Code: 


Your id is likely correct since Lake Arrowhead is heavily infested with variable leaf milfoil. All but one of Maine's native milfoils have three or more leaves arranged in a whorl around the stem, just like this invasive. The only definitive way to identify a milfoil plant is to find one while it's in flower because each species of milfoil has a different flowering structure.
Nice find.

Thanks! I had studied aquatic plants for six hours on the last day of school!

Thanks for keeping an eye out for those pesky aquatic invasives. Did you find this floating on the shore of the lake?

I found this on the edge of the shore and I decided to test out my learning skills from the six hour training!