Names
- Scientific name
- Penstemon angustifolius subsp. caudatus
Taxonomy
- Taxonomic Rank
- Subspecies
- Author
- (A.Heller) D.D.Keck
- Publication
- J. Washington Acad. Sci. 29: 490 (1939)
- Synonym Of
-
Penstemon angustifolius var. caudatus
References
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024