Invasive SpeciesPurple loosestrife

Lythrum salicaria
East Waterboro
ID Confirmed
Quality checked by 6BS22
Peer reviewed by 6SJ12
Field Notes
The equipment we used was a folder with pictures, some measurement tools, and a camera. The wind speed was 9 MPH. The air temperature was 13.8 degrees c., and the humidity was 60%. [What did you find?] We found insects in our quadrat and we also found plants that would stick to our clothing and we became human vectors. [Habitat] Fresh water wetland. [Weather] Was sunny and warm. [What did we see?] We found a frog near the forest line in front of our school. [What our jobs were?] Nate- Equipment manager Ben- Photographer Nick- Illustrator Taylor/Brandon- Data collectors Date- 9/23/10
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
This plant is not purple loosestrife because purple loosestrife is purple with some green when blossomed and this plant is all green when completely blossomed.
Photo of my evidence.
This is not purple loosestrife because purple losestrife is 2 or 3 meters tall this is only about a meter.
Photo of my evidence.
This is not purple loosestrife because purple loosestrife has little hairs and this plant has a smooth stem.
Species Observation: Species Looked For
Did you find it?: 
I think I did not find it
Scientific name:
Lythrum salicaria
Common name:
Purple loosestrife
Sampling method: 
Quadrat (user-placement)
Photo of our sampling method.
Place Studied
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Map this species
N 43.580800 °
W -70.703000 °
Observation Site Information
A photo of our study site.
Freshwater - On a wetland
Trip Information
Massabesic Middle School Campus
Trip date: 
Thu, 2010-09-23 08:58
Town or city: 
East Waterboro
Type of investigation: 
Species and Habitat Survey
Habitat Observations
Species diversity: 
4 different species
Evidence of vectors: 
Tree canopy cover: 
Soil moisture: 


Very nice photo to is crystal clear

nice sketch with clear showing of the plants of detail.

I have enjoyed the comments and I will do more. Thank you media

Thank you all for your nice comments except for Mr. Parent and I will try to keep up the good work

Good observation! And I love this sketch! You have captured the detail of this plant extremely well! We would love to see many more sketches of what you find with your class during observations. Thank you for your contributions!

-Sue Donaldson (volunteer at GMRI creating species cards)

P.S. I used to teach in Waterboro at Massabesic Middle School. I love hearing from people in your area! Keep up the great work...

The art of science illustration goes way back...nice to see new budding talent!!

Very nice observation!

You've done a good job of documenting and a wonderful job of sketching the plant specimen you found.

Go Massabesic! (I'm a Massabesic grad who helped to build this website with GMRI).

Go Mustangs!

Is a career as a scientific illustrator in your future?!

Nice job. Awesome sketch. Your field notes have some good details. Yes, those seeds sure got spread around by us. Pretty clever of that plant.
Your pictures are clear with a good use of scale. Maybe you should have focused on what characteristics make Loosestrife unique and how your plant is different. Your pictures point them out, but you written evidence doesn't mention the best evidence. The leaves are similar, except for the margins, the leaf arrangement is different and the stem shape is different too. Your pictures do a great job of showing the differences and the expert agreed with your findings. Good work. I wonder if we can identify those plants; the one with the clever seed dispersal and the one you got good pictures of.