Cirsium discolor (Muhl. ex Willd.) Spreng

Chicago citation style
Cirsium discolor (Muhl. ex Willd.) Spreng. 15 Sep 1979. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12977805&repo=DPLA. (Accessed December 15, 2018.)
APA citation style
(15 Sep 1979) Cirsium discolor (Muhl. ex Willd.) Spreng. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12977805&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12977805&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.