noun
- Whorls of deep blue to dark purple flowers at tips of erect leafy stems; moist places from British Columbia to Oregon.
- synonyms: Penstemon serrulatus
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). cascade penstemon. Retrieved September 25, 2026, from http://smartdefine.org/cascade_penstemon/definitions/1241074 |
| Chicago | WordNet. 2010. "cascade penstemon" http://smartdefine.org/cascade_penstemon/definitions/1241074 (accessed September 25, 2026). |
| Harvard | WordNet 2010, cascade penstemon, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/cascade_penstemon/definitions/1241074>. |
| MLA | WordNet. "cascade penstemon" 23 October 2010. Web. 25 September 2026. <http://smartdefine.org/cascade_penstemon/definitions/1241074> |