Invasive SpeciesSmooth buckthorn

Frangula alnus
ID Questioned
Quality checked by Mrs.H
Peer reviewed by KK
Field Notes
It was 1:00 pm when we walked along the shady road to our observation place. It was quiet a little too quiet. The school was ten feet behind me when you could see the study site. The place was a moist ditch lined with rocks and plants growing throughout the rocks and on the outskirts of the ditch there were plants too. Once we arrived we started on a transect line we searched the plants the rocks the leaves looking for our species in the 3x3 meter area. This 3x3 meter area has both invasive and native species.
Supporting Evidence
Photo of my evidence.
I found a plant with berrys but this plant had red berrys and this late in the fall the berrys would be black and blue
Photo of my evidence.
The bark I found on a different plant had white spots but not as many as Smooth buckthorn.
Photo of my evidence.
The leaf of another plant I found had wavy edges but this plant did not have a hairy underneath.
Species Observation: Species Looked For
Did you find it?: 
I think I did not find it
Scientific name:
Frangula alnus
Common name:
Smooth buckthorn
Sampling method: 
Photo of our sampling method.
Place Studied
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Map this species
N 43.736850 °
W -70.275600 °
Observation Site Information
A photo of our study site.
Upland - Developed areas
Trip Information
School Driveway Forest Edge 2017
Trip date: 
Mon, 2017-09-11 09:00
Town or city: 
Type of investigation: 
Species and Habitat Survey
Habitat Observations
Species diversity: 
8 different species
Evidence of vectors: 
Paved road
Recent disturbance
Tree canopy cover: 
Open to 1/4 covered
Soil moisture: 


Well done. I like your field notes. Great Work.

The berries in the first photo look like bittersweet nightshade I think, but sounds like your other two photos might have been smooth buckthorn?


Yes those are probably nightshade berries.

Best I can tell you did find Glossy Buckthorn. The berries can be blue, black or red or all mixed together as well.

Great attention to detail! I am glad that you did not find smooth buckthorn. Is there evidence of smooth buckthorn nearby? Do you think that your area is at risk? What do you think you could do to prevent smooth buckthorn from taking over your area?

Keep up the great work monitoring your community for invasives!