Pyrrhopappus rothrockii A. Gray

Chicago citation style
Pyrrhopappus rothrockii A. Gray. Sep 1884. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13136552&repo=DPLA. (Accessed December 12, 2018.)
APA citation style
(Sep 1884) Pyrrhopappus rothrockii A. Gray. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13136552&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13136552&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.