External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:187117-2
- Publication
- Contributions to Western Botany. [by Marcus E. Jones]. San Francisco, CA
- Collation
- 14: 35
- Date of Publication
- 29 Jun 1912
- Family as entered in IPNI
- Scrophulariaceae
Links
- Nomenclatural link
- Penstemon calcareus M.E.Jones, Contr. W. Bot. 12: 60 (1908).