Rhamnus spp. (Buckthorn)

Buckthorn is a shrub or small tree that belongs to the Rhamnaceae family. There are numerous species of Buckthorn, including Rhamnus cathartica, commonly known as Common Buckthorn. It typically grows up to 20 feet in height and forms a dense thicket of branches. The leaves are dark green and glossy, and the flowers are small, yellow-green clusters that bloom in the spring.