Invasive SpeciesGlossy buckthorn

Frangula alnus
FOUND by 18Ekb
ID Confirmed
Quality checked by Ms H
Peer reviewed by LT
Field Notes
The day I went out to look for Invasive Species was 63º Fahrenheit, partly cloudy, and there was a slight breeze. It was around 2:00 PM, so the sun was passed directly overhead. It had not rained lately, but the blanket of leaves, pine needles, and pine cones kept the ground moist. I was looking for Phragmites australis, more commonly known as Phragmites or Giant Reed. The plot I was looking in was 5 meters wide, and about 5 meters deep. There were 8 groups in our class, and we each had equal sized plots arranged in a line along the side of a road near a developed school area. Our plot had some overgrown grasses, but it was mostly dirt covered in dead leaves and pine needles. Because I was near the road, there were a few bits of pavement scattered in the area. Many of the dead plants I saw were already starting to decompose. The deeper I went into our plot, the bigger the trees, and the denser the forest got. I saw several bugs, and I thought that might correspond to the miniature holes in some of the plant's leaves. I did not find Phragmites, but I found a lot of Frangula alnus, more commonly known as Glossy Buckthorn. I would assume it has spread through the seeds of the tree blowing into other areas, because the leaves are small, and could easily blow away. I think it would be a good idea to remove the trees before they can spread anymore.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
These leaves are oval shaped and wavy-edged, just like all of the evidence about Glossy Buckthorn. You can also see the deep, dark green that is common among Glossy Buckthorn.
Photo of my evidence.
These leaves are just over 2 inches ( about 5 centimeters) which is right in the realm of how long Glossy Buckthorn leaves should be (3-6 centimeters).
Photo of my evidence.
These leaves are in an alternating arrangement, the same way they are on a Glossy Buckthorn.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Frangula alnus
Common name:
Glossy buckthorn
Sampling method: 
Photo of our sampling method.
Place Studied
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Map this species
N 43.736784 °
W -70.275378 °
Observation Site Information
A photo of our study site.
Upland - Developed areas
Trip Information
2018 School Site Forest Edge
Trip date: 
Thu, 2018-09-13 07:26
Town or city: 
Type of investigation: 
Species Survey


Great ideas. Generally the seeds are moved by birds and mice or other small mammals as opposed to wind.