alder buckthorn

shrub
Also known as: Rhamnus frangula, alder dogwood, glossy buckthorn
Also called:
Alder Dogwood (Rhamnus frangula)

alder buckthorn, (Rhamnus frangula), woody shrub or small tree, of the buckthorn family (Rhamnaceae), native to western Asia, Europe, and northern Africa. It has been introduced into North America and other regions, where it is often cultivated as an ornamental. The plant grows rapidly, reaching a height of 5.5 m (about 18 feet); its dark, dense, and lustrous foliage turns yellow in autumn. The alternate, rather oval leaves are 3.75–6 cm (1 1/2–2 1/2 inches) long. Small, white flowers are borne in clusters of 2 to 10. The small fruit turns from red to black. Tallhedge buckthorn (Rhamnus frangula ‘Columnaris’) is a horticultural variety grown for its low maintenance and upright form.

Britannica Chatbot logo

Britannica Chatbot

Chatbot answers are created from Britannica articles using AI. This is a beta feature. AI answers may contain errors. Please verify important information using Britannica articles. About Britannica AI.