Invasive SpeciesJapanese barberry

Berberis thunbergii
FOUND by Bluebarberry
ID Confirmed
Quality checked by Blue- Japanese Knot weed group
Peer reviewed by Blue- Japanese Knot weed group
Field Notes
There were many pine needles in the habitat that fell from the trees above. The habitat was located in a small trail on a hilly area off of the main trail. There was a slight breeze. It was quite with no noises that standed out. The trees were covering three fourths of the sky above.
Supporting Evidence
Photo of my evidence.
The Japanese Barberry has small red oval berries attached to his stem
Photo of my evidence.
The Japanese Barberry has sharp small thorns attached to the stem
Photo of my evidence.
The Japanese Barberry has smooth green leaves that are about 3-4 inches long
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Berberis thunbergii
Common name:
Japanese barberry
Count of individuals: 
Vegetative structures (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 43.138358 °
W -70.923821 °
Observation Site Information
A photo of our study site.
Upland - Forest
Trip Information
Sanctuary trail
Trip date: 
Wed, 2016-10-19 10:19
Town or city: 
Type of investigation: 
Species and Habitat Survey
Oyster River
Habitat Observations
Species diversity: 
15 different species
Evidence of vectors: 
Walking trail
Tree canopy cover: 
3/4 - Completely covered
Soil moisture: 


Since there is a Durham, Maine and a Durham, NH, it would be awesome if you would add your state to your field notes!

Love that the Vital Signs community has expanded to include NH student scientists!

Next time, try using a measurement to replace "small" in your evidence statements. Great work.