(n.) The Platanus occidentalis or American plane tree, a large tree, producing rough balls, from which it is named; -- called also buttonball tree, and, in some parts of the United States, sycamore. The California buttonwood is P. racemosa.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). buttonwood. Retrieved September 21, 2026, from http://smartdefine.org/buttonwood/definitions/1983439 |
| Chicago | Webster's. 2011. "buttonwood" http://smartdefine.org/buttonwood/definitions/1983439 (accessed September 21, 2026). |
| Harvard | Webster's 2011, buttonwood, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/buttonwood/definitions/1983439>. |
| MLA | Webster's. "buttonwood" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/buttonwood/definitions/1983439> |