- (a.) Of or pertaining to a natural order (Umbelliferae) of plants, of which the parsley, carrot, parsnip, and fennel are well-known examples.
- (a.) Producing umbels.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). umbelliferous. Retrieved September 30, 2026, from http://smartdefine.org/umbelliferous/definitions/2076109 |
| Chicago | Webster's. 2011. "umbelliferous" http://smartdefine.org/umbelliferous/definitions/2076109 (accessed September 30, 2026). |
| Harvard | Webster's 2011, umbelliferous, Smart Define, viewed 30 September, 2026, <http://smartdefine.org/umbelliferous/definitions/2076109>. |
| MLA | Webster's. "umbelliferous" 28 May 2011. Web. 30 September 2026. <http://smartdefine.org/umbelliferous/definitions/2076109> |