noun
- Perennial erect herb with white flowers; circumboreal.
- synonyms: Polemonium boreale
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). northern jacob's ladder. Retrieved October 1, 2026, from http://smartdefine.org/northern_jacob%27s_ladder/definitions/1240748 |
| Chicago | WordNet. 2010. "northern jacob's ladder" http://smartdefine.org/northern_jacob%27s_ladder/definitions/1240748 (accessed October 1, 2026). |
| Harvard | WordNet 2010, northern jacob's ladder, Smart Define, viewed 1 October, 2026, <http://smartdefine.org/northern_jacob%27s_ladder/definitions/1240748>. |
| MLA | WordNet. "northern jacob's ladder" 23 October 2010. Web. 1 October 2026. <http://smartdefine.org/northern_jacob%27s_ladder/definitions/1240748> |