Invasive SpeciesJapanese knotweed

Fallopia japonica
FOUND by Panther
ID Confirmed
Quality checked by Fox Squirrel
Peer reviewed by Squid
Field Notes
We are happy because its a nice day and we're outside. We see flowers and leaves. We smell fresh plants. We hear wind. We are surprised that we found so many little seeds on the ground. Why are some of the flowers on the Fallopia Japonica bigger than others?
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
One reason we believe this to be Japanese Knotweed is because it is a simple leaf arrangement and of all the pictures of Japanese Knotweed I've seen the arrangement is simple just like this.
As you can see in the photo above there are small white flowers growing off of the Knotweed. It is the end of September and according to Vital Signs Japanese Knotweed flowers in September through October.
Photo of my evidence.
The stems were like bamboo, they were hollow. You could easily blow through them like a pipe.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Fallopia japonica
Common name:
Japanese knotweed
Count of individuals: 
Flower (plants)
Sampling method: 
Quadrat (user-placement)
Photo of our sampling method.
Place Studied
We’re sorry, JavaScript is required to view the map. If JavaScript is you may wish to upgrade to a newer browser in order to view this map.
Map this species
N 44.811098 °
W -68.755654 °
Observation Site Information
A photo of our study site.
Upland - Developed areas
Trip Information
Cohen School grounds
Trip date: 
Wed, 2018-09-12 09:48
Town or city: 
Type of investigation: 
Species and Habitat Survey
Habitat Observations
Species diversity: 
5 different species
Evidence of vectors: 
Paved road
Tree canopy cover: 
Open to 1/4 covered
Soil moisture: 
Login or register to post comments