Invasive SpeciesJapanese knotweed

Fallopia japonica
FOUND by fox squirrel
2018-09-12
Bangor
ID Confirmed
Quality checked by Squid
Peer reviewed by Panther
Field Notes
The so called Japanese Knotweed is very unique and beautiful because of the flowers in the center of the branch and the amount of small the blossoms. One of the challenges of this assignment was that the Giant Knotweed was nearby and looked very similar to the Japanese Knotweed. Otherwise, the assignment was accurate, and very fun.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
The stems and leaves matched up very well with the scientific diagram of the Japanese Knotweed with leaf texture, shape, and size. The shape of the leaves were oval on an alternate branch with smooth sides. Also, the stems were hollow and shaped like bamboo. The leaves were smaller unlike the plant called Giant Knotweed nearby with bigger leaves and sagging blossoms.
Photo of my evidence.
The ground around the plant fit the Japanese Knotweed from the diagram. Another reason why we know this is the Japanese knotweed is because of the slender, wiry stems that are highly branched on the plant. The soil was fertile and a little dry, just like soil in a grassy field.
Photo of my evidence.
We know that this invasive species is the Japanese Knotweed and not the other plants such as the woody nightshade because of the blossoms. The Japanese knotweed is unique because of the many flowers on the branch. The flowers on this plant are a vanilla white color and there are many of them of one branch.
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: 
10-20
Coverage: 
3/4 - Completely covered
Reproduction: 
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
Latitude: 
N 44.811109 °
Longitude: 
W -68.755705 °
Observation Site Information
A photo of our study site.
Habitat: 
Upland - Developed areas
Trip Information
Name:
Cohen School grounds
Trip date: 
Wed, 2018-09-12 09:48
Town or city: 
Bangor
Type of investigation: 
Species and Habitat Survey
Ecosystem: 
Upland
Watershed: 
Penobscot
Habitat Observations
Species diversity: 
2 different species
Evidence of vectors: 
Paved road
People
Tree canopy cover: 
Open to 1/4 covered
Soil moisture: 
Moist
Login or register to post comments