Invasive SpeciesVariable watermilfoil

Myriophyllum heterophyllum
NOT FOUND by OOB_vmilfoil1
Old Orchard Beach
ID Confirmed
Quality checked by
Peer reviewed by
Field Notes
I am happy because I'm helping collect data for science, and was helping find if there are any invasive plants in Milliken Mills. I saw brownish water, lots of leaves in the water, trees, plants, birds, bugs, grass, dead trees and plants, frogs. I smell fresh water. I hear birds, the wind, and water splashing. I am suprized by what I found or didn't find because even though it was an invasive species I thought I would find it. Questions or problems I ran into were the weed weasel getting stuck on dead trees and branches in the water.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
This is not Variable Watermilfoil because its community is emergent, and its leaves are oval.
Photo of my evidence.
The bottom of Milliken Mills Pond was almost completely clear of any plants.
Species Observation: Species Looked For
Did you find it?: 
I think I did not find it
Scientific name:
Myriophyllum heterophyllum
Common name:
Variable watermilfoil
Sampling method: 
Just looking around
Weed weasel
Photo of our sampling method.
Place Studied
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Map this species
N 43.542970 °
W -70.396810 °
Observation Site Information
A photo of our study site.
Freshwater - In a pond or lake
Trip Information
Milliken Mills Pond 1
Trip date: 
Tue, 2009-06-02 08:30
Town or city: 
Old Orchard Beach
Type of investigation: 
Species and Habitat Survey
MIDAS Code: 
Habitat Observations
Species diversity: 
18 different species
Evidence of vectors: 
Dirt road
Walking trail
Water temperature: 
Dissolved oxygen: 


A clear lake bottom is usually a very good sign, and I would agree with you that you did not find milfoil. I would note however that milfoils do in fact have emergent parts, especially during flowering season when small spikes will protrude above the water's surface. Nice job!