Penstemon deustus subsp. heterander (Torr. & A.Gray) Pennell & D.D.Keck Amer. Midl. Naturalist 23: 603 (1940)

Nomenclatural References

• literature : Amer. Midl. Naturalist 23(3): 603. 1940 [May 1940] BHL link from IPNI metadata.
• literature : Keck, D. D. (1940). Studies in Penstemon. VII. The Subsections Gairdneriani, Deusti, and Arenarii of the Graciles, and Miscellaneous New Species. American Midland Naturalist, 23(3), 594. https://doi.org/10.2307/2420449 DOI link imported from Page, R. (2023). doi:10.5281/zenodo.7974720
• person : Asa Gray (1810-1888) Based on occurrence of standard abbreviation 'A.Gray' in the authors string.
• 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.
• person : John Torrey (1796-1873) Based on occurrence of standard abbreviation 'Torr.' in the authors string.
• database : IPNI record: 187343-2