Silphium asteriscus var. trifoliatum (L.) Clevinger

Chicago citation style
Silphium asteriscus var. trifoliatum (L.) Clevinger. 8 Jul 1985. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12998694&repo=DPLA. (Accessed November 13, 2018.)
APA citation style
(8 Jul 1985) Silphium asteriscus var. trifoliatum (L.) Clevinger. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12998694&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12998694&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.