Invasive SpeciesJapanese knotweed

Fallopia japonica
FOUND by stemweek3C
2018-07-24
Portland
ID Confirmed
Quality checked by Chloe
Peer reviewed by
Field Notes
My group and I found no insects in our soapy water traps.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
I believe I found Japanese knotweed because the plant has oval leaves with smooth edges and a alternate design.
Photo of my evidence.
The Japanese knotweed grew in clusters.
Photo of my evidence.
It had reddish stems and dark green leaves.
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: 
20-50
Coverage: 
Between 1/2 and 3/4
Reproduction: 
Vegetative structures (plants)
Sampling method: 
Just looking around
Time search
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 43.664741 °
Longitude: 
W -70.275810 °
Observation Site Information
A photo of our study site.
Habitat: 
Upland - Developed areas
Trip Information
Name:
USM
Trip date: 
Tue, 2018-07-24 11:00
Town or city: 
Portland
Type of investigation: 
Species and Habitat Survey
Ecosystem: 
Upland
Watershed: 
Presumpscot
Habitat Observations
Species diversity: 
0 different species
Evidence of vectors: 
Paved road
People
Construction
Tree canopy cover: 
Between 1/2 and 3/4
Soil moisture: 
Moist
Login or register to post comments