Silphium intergrifolium var. integrifolium

Chicago citation style
Silphium intergrifolium var. integrifolium. 27 Aug 1936. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12995171&repo=DPLA. (Accessed November 16, 2018.)
APA citation style
(27 Aug 1936) Silphium intergrifolium var. integrifolium. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12995171&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12995171&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.