Is this a field full of purple loosestrife in Grand Isle?

Here is the Science Notebook I kept while investigating a potential purple loosestrife invasion in Grand Isle, Maine.

Project Information
City or Town: 
Grand Isle
Species: 
Scientific name:
Lythrum salicaria
Common name:
Purple loosestrife
Habitat: 
Upland - Field
How should others reference your work?: 
pparent, Science Notebook for Loosestrife Investigation, Vital Signs Program, August 2010