Penstemon laricifolius subsp. exilifolius (A.Nelson) D.D.Keck Bull. Torrey Bot. Club 64: 381 (1937)

Nomenclatural References

• literature : Bull. Torrey Bot. Club 64: 381. 1937 BHL link from IPNI metadata.
• literature : Keck, D. D. (1937). Studies in Penstemon IV. The Section Ericopsis. Bulletin of the Torrey Botanical Club, 64(6), 357. https://doi.org/10.2307/2481121 DOI link imported from Page, R. (2023). doi:10.5281/zenodo.7974720
• person : Aven Nelson (1859-1952) Based on occurrence of standard abbreviation 'A.Nelson' in the authors string.
• person : David D. Keck (1903-1995) Based on occurrence of standard abbreviation 'D.D.Keck' in the authors string.
• database : IPNI record: 187590-2
• database : The Plant List version 1.0, record: tro-29201390
• database : The Plant List version 1.1, record: tro-29201390