COMMON BUCKTHORN

Rhamnus cathartica

BUCKTHORN FAMILY (Rhamnaceae)


Description
This dense, non-native shrub or small tree grows up to 15 feet tall (E). Its oval, toothed leaves, about 3 inches long and 2 inches wide, are mostly opposite on the twigs (A). The long thorns are at the ends of twigs and may best be seen after the leaves have fallen. Female and male flowers are on the same plant. The male flower is greenish yellow (B). The spherical fruit, about 1/2 inch in diameter, is first green then black (D).

Occurrence
Grows along roadsides and in woodlands near water, flowering in May. In Fontenelle Forest, uncommon along Stream Trail.

Comments
This invasive shrub is being controlled by cutting. It is host to Oak Crown Rust, the orange spots on some of the images above (B,C).



Disclaimer: The content of NatureSearch is provided by dedicated volunteer Naturalists of Fontenelle Nature Association who strive to provide the most accurate information available. Contributors of the images retain their copyrights. The point of contact for this page is: Roland Barth.

 

 

 

 

© 2008 Fontenelle Forest. All Rights Reserved. | Website Design by REBEL INTERACTIVE