(n.) A genus of violaceous plants, chiefly found in tropical America, some species of which are used as substitutes for ipecacuanha.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). ionidium. Retrieved September 22, 2026, from http://smartdefine.org/ionidium/definitions/2023595 |
| Chicago | Webster's. 2011. "ionidium" http://smartdefine.org/ionidium/definitions/2023595 (accessed September 22, 2026). |
| Harvard | Webster's 2011, ionidium, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/ionidium/definitions/2023595>. |
| MLA | Webster's. "ionidium" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/ionidium/definitions/2023595> |