Rudbeckia laciniata var. ampla (A. Nelson) Cronquist

Chicago citation style
Rudbeckia laciniata var. ampla (A. Nelson) Cronquist. 17 Aug 1921. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12812543&repo=DPLA. (Accessed December 12, 2018.)
APA citation style
(17 Aug 1921) Rudbeckia laciniata var. ampla (A. Nelson) Cronquist. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12812543&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12812543&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.