Invasive SpeciesGlossy buckthorn

Frangula alnus
FOUND by 2018anp
2018-10-04
Falmouth Maine
ID Confirmed
Quality checked by Mr.Wilson
Peer reviewed by Sloane
Field Notes
The day I found the Glossy Buckthorn it was Oct 4, 2018 and around 60 degrees and cloudy. There were around 5 groups upland that all split up onto different walking trails. The spot where I found the Glossy Buckthorn was very shady with many trees hanging over the Glossy Buckthorn. Just next to this was a walking trail and a parking lot which means there's a lot of foot traffic in this area. The Glossy Buckthorn was next to many other plants but was very small and around 1ft by 1ft. Since the Glossy Buckthorn was so small and still growing this means it probably hasn't affected the environment much.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
This photo shows the grayish-brown stem with small white spots spread around the stem
Photo of my evidence.
This photo shows the oval shape of the leave that is 6 cm long and the glossy green color of the plant
Photo of my evidence.
This photo shows the smooth edges and also the waves on the side of the leaves
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Frangula alnus
Common name:
Glossy buckthorn
Sampling method: 
Just looking around
Photo of our sampling method.
Place Studied
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Map this species
Latitude: 
N 43.687724 °
Longitude: 
W -70.234909 °
Observation Site Information
A photo of our study site.
Habitat: 
Upland - Forest
Trip Information
Name:
2018 Mackworth Upland
Trip date: 
Thu, 2018-10-04 15:06
Town or city: 
Falmouth Maine
Type of investigation: 
Species Survey
Ecosystem: 
Upland
Watershed: 
Presumpscot

Comments

What are the white spots on the stems called? What purpose do they serve?