Silphium asteriscus, commonly called starry rosinweed,[2] is an herbaceous plant in the family Asteraceae. It is native to the eastern United States, from Oklahoma and Texas east to Florida and Pennsylvania.[3] It is a widespread species found in a variety of open habitats, such as prairies, woodlands, and flatwoods.[4][5]
Taxonomy
Additional research is needed to better understand the taxonomy of this species. It remains perhaps the most poorly-understood Silphium in eastern North America.[6] It appears to show a high level of local variability throughout its range, which has been interpreted as either a species complex, a single highly variable species, or some combination of both. Due to conflicting information about the best circumscription of the varieties, the taxonomy of this species remains unsettled.[7][8]
^Kartesz, John T. (2014). "Silphium asteriscus". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). Retrieved 18 January 2017.
^Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: July 2015. Collectors: Andre F. Clewell, Steve L. Orzell, Robert K. Godfrey, R. A. Norris, R. Komarek, Loran C. Anderson, Wilbur H Duncan, George R. Cooley, Richard J. Eaton, James D. Ray, Jr., R L Lazor, Gary R. Knight, C. Jackson, K. Craddock Burks, Richard S. Mitchell, A. H. Curtiss, R. Kral, Paul L. Redfearn, Jr. States and Counties: Florida: Bay, Dixie, Franklin, Gadsden, Jackson, Jefferson, Leon, Liberty, Levy, Okaloosa, Taylor, Wakulla. Georgia: Brooks, Grady, Hall, Thomas.
^Chester, Edward (2015). Guide to the Vascular Plants of Tennessee.
