Native
Northern America
-
NORTHWESTERN U.S.A.:
United States
[Idaho,
Montana
(s.w.),
Wyoming
(n.w.)]
- Hitchcock, C. L. et al. Vascular plants of the Pacific Northwest. 1955-1969 (F Pacif NW)
Check other web resources for Penstemon cyaneus Pennell :
Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN-Taxonomy).
National Germplasm Resources Laboratory, Beltsville, Maryland. URL: http://germoplasma.iniaf.gob.bo/gringlobal/taxonomydetail.aspx?id=448223. Accessed 5 junio 2026.