Virgulus patens var. gracilis (Hook.) Reveal & Keener Taxon 30(3): 650 (1981):.

Nomenclatural References

• literature : Reveal, J. L., & Keener, C. S. (1981). VIRGULUS RAF. (1837), AN EARLIER NAME FOR LASALLEA GREENE (1903) (ASTERACEAE). TAXON, 30(3), 648–651. Portico. https://doi.org/10.2307/1219951 DOI link imported from Page, R. (2023). doi:10.5281/zenodo.7974720
• person : Carl Samuel Keener (b.1931) Based on occurrence of standard abbreviation 'Keener' in the authors string.
• person : James L. Reveal (1941-2015) Based on occurrence of standard abbreviation 'Reveal' in the authors string.
• person : William Jackson Hooker (1785-1865) Based on occurrence of standard abbreviation 'Hook.' in the authors string.
• database : IPNI record: 920408-1
• database : The Plant List v1.1 record gcc-53961
• database : The Plant List version 1.0, record: gcc-53961