"Alder Buckthorn. Buckthorn, the name of an extensive genus of trees and shrubs, order Rhamnaceae." -Vaughan, 1906

Alder Buckthorn

"Alder Buckthorn. Buckthorn, the name of an extensive genus of trees and shrubs, order Rhamnaceae."…

Alder Buckthorn (Rhomnus Frangula). B, Flower. C, same in section.

Flower

Alder Buckthorn (Rhomnus Frangula). B, Flower. C, same in section.