European Buckthorn (Rhamnus cathartica)

Native To State: NO
Naturally Occurring: NO

Description

Small-medium tree with glossy dark green leaves that persist after the native species have all turned color or lost their leaves. This makes it easy to spot in late October/November, which makes removal easier.

This species is the single biggest threat to the arboretum. As a result, a strict annual cut-and-treat is performed every fall. All specimens found that are thumb-thick or larger are cut and treated with Tordon to prevent resprouting. While this practice has been successful in keeping our woods from becoming a monoculture of this invader, it will be a never-ending task. None of the surrounding neighbors employ such control providing a a source for new seeds to be carried in by birds. Smaller seedling size plants are necessarily ignored until they get a little larger. The most important targets are those which are producing berries.

Occurrence
Widespread throughout the property