Invasive SpeciesJapanese knotweed

Fallopia japonica
FOUND by Group 2
ID Confirmed
Quality checked by Group 1
Peer reviewed by Group 3
Field Notes
My Human ecology class got to go outside and look for Japanese Knotweed. It was a hot and sunny day. It was the perfect day to get out of the class room and be outside. It was a little buggy out but, not too bad. We walked on the side of the rode where we found the Japanese Knotweed. It was a little noisy with some cars driving by here and there but not too bad. When we found the Japanese Knotweed it was only a little ways in but you could see it from the road. When we found this we measured it and examined it to make sure it was the Japanese Knotweed.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
When we measured the leaves we found they were 11 1/2 centimeters long and 10 centimeters wide. The average leaf is 18 centimeters long and 12 centimeters wide. Also, the leaves are spade shaped with a leafy tip and smoothed edges.
Photo of my evidence.
This photo shows a student who is 5'8" standing next to the bush. In this, you can tell that the bush is tall and very wide. You can vaguely see the branches coming out of the zig-zag on the stems.
Photo of my evidence.
In this picture you can see how the stems grown in a zig-zag formation. You can also see the branches coming out of the stems. This is one why you can tell that is a Japanese knotweed.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Fallopia japonica
Common name:
Japanese knotweed
Sampling method: 
Just looking around
Photo of our sampling method.
Place Studied
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Map this species
N 44.622010 °
W -67.844930 °
Observation Site Information
A photo of our study site.
Upland - Forest
Trip Information
Rails to Trails
Trip date: 
Tue, 2015-06-09 10:25
Town or city: 
Type of investigation: 
Species Survey
Eastern Coastal
Time of low tide: 


Looks like a beautiful day indeed! Nice photos of the leaves and that's a beautiful sketch. Thanks for sharing.

Happy observing,