Penstemon eriantherus var. grandis Pennell & D.D.Keck Bull. Torrey Bot. Club 65: 251 (1938)

Nomenclatural References

• literature : Bull. Torrey Bot. Club 65: 251. 1938 BHL link from IPNI metadata.
• literature : Keck, D. D. (1938). Studies in Penstemon VI. The Section Aurator. Bulletin of the Torrey Botanical Club, 65(4), 233. https://doi.org/10.2307/2480925 DOI link imported from Page, R. (2023). doi:10.5281/zenodo.7974720
• specimen : Type specimen at Edinburgh (E). Pennell, Francis: 20511. Barcode: E01046279. Specimen link provided by Royal Botanic Garden Edinburgh.
• person : David D. Keck (1903-1995) Based on occurrence of standard abbreviation 'D.D.Keck' in the authors string.
• person : Francis W. Pennell (1886-1952) Based on occurrence of standard abbreviation 'Pennell' in the authors string.
• database : IPNI record: 187376-2