- (v.) An annual composite plant (Senecio vulgaris), one of the most common and widely distributed weeds on the globe.
- (n.) Alternative of Groundsill.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). groundsel. Retrieved September 21, 2026, from http://smartdefine.org/groundsel/definitions/2013888 |
| Chicago | Webster's. 2011. "groundsel" http://smartdefine.org/groundsel/definitions/2013888 (accessed September 21, 2026). |
| Harvard | Webster's 2011, groundsel, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/groundsel/definitions/2013888>. |
| MLA | Webster's. "groundsel" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/groundsel/definitions/2013888> |