External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:187188-2
- Species Name
- Penstemon azureus Benth.
- Publication
- University of California Publications in Botany. Berkeley, CA
- Collation
- 16: 402
- Family as entered in IPNI
- Scrophulariaceae
Links
- Nomenclatural link
- Penstemon azureus var. angustissimus A.Gray, Syn. Fl. N. Amer. 2(1): 272 (1878).
- Same citation as
- Penstemon azureus subsp. angustissimus (A.Gray) D.D.Keck