Invasive SpeciesJapanese knotweed

Fallopia japonica
NOT FOUND by cbisberg
2017-07-18
Orono
ID Confirmed
Quality checked by yes, self-assessed
Peer reviewed by Bill McWeeny
Field Notes
This was a no knotweed found sample:A patch of unmanicured understory between a manicured lawn and a river. Maples above. 1 meter square sample area.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
There were a couple of broad-leaf species in the quadrant, such as shown, but neither had the stem of knotweed.
Photo of my evidence.
There were a couple of broad-leaf species in the quadrant, such as shown, but neither had the stem of knotweed.
Species Observation: Species Looked For
Did you find it?: 
I think I did not find it
Scientific name:
Fallopia japonica
Common name:
Japanese knotweed
Sampling method: 
Quadrat (user-placement)
Photo of our sampling method.
Place Studied
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Map this species
Latitude: 
N 44.886190 °
Longitude: 
W -68.670950 °
Observation Site Information
A photo of our study site.
Habitat: 
Freshwater - In a developed area
Trip Information
Name:
UMO
Trip date: 
Tue, 2017-07-18 09:30
Town or city: 
Orono
Type of investigation: 
Species and Habitat Survey
Ecosystem: 
Upland
Watershed: 
Penobscot
Habitat Observations
Species diversity: 
21 different species
Evidence of vectors: 
Boat ramp
Paved road
Walking trail
People
Tree canopy cover: 
3/4 - Completely covered
Soil moisture: 
Moist

Comments

The leaves were also serrated on some of what we found, while Knotweed's are smooth.

Yes! And your images capture that difference beautifully.

Is there anything else that you noticed about the plant you saw, in addition to the stem, that makes you think it's not F. japonica?

cheers,
gbh