Silphium perfoliatum f. petiolatum E.J.Palmer & Steyerm. Brittonia 10: 119 (1958)

Nomenclatural References

• literature : Palmer, E. J., & Steyermark, J. A. (1958). Plants New to Missouri. Brittonia, 10(3), 109. https://doi.org/10.2307/2804792 DOI link imported from Page, R. (2023). doi:10.5281/zenodo.7974720
• person : Ernest Jesse Palmer (1875-1962) Based on occurrence of standard abbreviation 'E.J.Palmer' in the authors string.
• person : Julian Alfred Steyermark (1909-1988) Based on occurrence of standard abbreviation 'Steyerm.' in the authors string.
• database : IPNI record: 236466-2