Invasive SpeciesJapanese knotweed

Fallopia japonica
FOUND by littleriver12
ID Confirmed
Quality checked by littleriver35
Peer reviewed by
Field Notes
In the picture, it has the simple round leaves with the flowers or seeds. It also has the bamboo stem.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
I know that I found it because in my study site I could see the physical features including Flowering, simple round leaves as it shows on the vital signs ID card. The bamboo stem. The bamboo stem is hollow with the swollen joints like the ID card says.
Photo of my evidence.
In the picture, it shows the flowers that are coming in on the species. The Japanese Knotweed does this when it is reproducing. According to the ID card, the flowering happens in September and October. This picture was taken on October 15th, 2018.
Photo of my evidence.
This picture shows the stem with the swollen joints. As it says in the ID card the swollen joints are on the Japanese Knotweed. The stem is hollow.
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: 
Between 1/2 and 3/4
Flower (plants)
Vegetative structures (plants)
Sampling method: 
Quadrat (user-placement)
Photo of our sampling method.
Place Studied
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Map this species
N 43.663809 °
W -70.445264 °
Observation Site Information
A photo of our study site.
Upland - Forest
Trip Information
Weeks Road Trail System
Trip date: 
Fri, 2018-10-12 08:00
Town or city: 
Type of investigation: 
Species and Habitat Survey
Habitat Observations
Species diversity: 
1 different species
Evidence of vectors: 
Walking trail
Tree canopy cover: 
Open to 1/4 covered
Soil moisture: 
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