Ephedra aspera Engelm. ex S. Watson

Chicago citation style
Ephedra aspera Engelm. ex S. Watson. 1 Sep 1938. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13193160&repo=DPLA. (Accessed December 17, 2018.)
APA citation style
(1 Sep 1938) Ephedra aspera Engelm. ex S. Watson. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13193160&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13193160&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.