(n.) A genus of shrubs and small trees; buckthorn. The California Rhamnus Purshianus and the European R. catharticus are used in medicine. The latter is used for hedges.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). rhamnus. Retrieved September 23, 2026, from http://smartdefine.org/rhamnus/definitions/2055696 |
| Chicago | Webster's. 2011. "rhamnus" http://smartdefine.org/rhamnus/definitions/2055696 (accessed September 23, 2026). |
| Harvard | Webster's 2011, rhamnus, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/rhamnus/definitions/2055696>. |
| MLA | Webster's. "rhamnus" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/rhamnus/definitions/2055696> |