Species PlantsCommon Buckthorn

Common Buckthorn

Rhamnus cathartica

CommonPlant
Illustration of Common Buckthorn (Rhamnus cathartica)
Safety note: Berries can cause mild toxicity if ingested.

Common Buckthorn is a deciduous shrub or small tree with dark berries and glossy leaves. It is invasive, forming dense thickets that crowd out native species. Its berries are mildly toxic to humans.

Habitat
Found in forests, fields, and along roadsides.
Diet
Its flowers are pollinated by bees and other insects.
How common
Common

Best time to see a Common Buckthorn

The best time to see a Common Buckthorn is May–September, when about 70% of U.S. sightings happen, based on 29,957 research-grade iNaturalist observations.

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Recent Common Buckthorn sightings near you

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