Penstemon tracyi D.D.Keck Amer. Midl. Naturalist 23: 603 (1940)

Nomenclatural References

• literature : Amer. Midl. Naturalist 23: 603, fig. 1, 2. 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 : David D. Keck (1903-1995) Based on occurrence of standard abbreviation 'D.D.Keck' in the authors string.
• database : IPNI record: 187824-2
• database : The Plant List v1.1 record tro-29201507
• database : The Plant List version 1.0, record: tro-29201507