glossy buckthorn - rhamnus frangula
Common Name: glossy buckthorn, alder buckthorn
Hardiness Zone: 3 to 7
Height: 12 to 15 ft
Width: 3 to 4 ft
Description: The glossy buckthorn is given its name due to the glossy look of the leaves. This is one of their distinguishing traits. Aggressive and invasive like the European buckthorn.