Buckthorn

Rhamnus fragula

Also known as: Alder buckthorn, glossy buckthorn.

Also known as: Alder buckthorn, glossy buckthorn.

Buckthorn is a small tree or shrub that can reach up to 20 - 25 feet in height. However, it most often grows as a shrub. The inner back is orange, and the outer back is dark gray or brown. Female plants produce a large amount of deep purple berries. It is especially important to remove the berry-producing plants. Otherwise, they will become a constant source of new plants.