Asclepias brachystephana Engelm. ex Torr. in Emory

Chicago citation style
Asclepias brachystephana Engelm. ex Torr. in Emory. 1851. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_2167183&repo=DPLA. (Accessed December 10, 2018.)
APA citation style
(1851) Asclepias brachystephana Engelm. ex Torr. in Emory. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_2167183&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_2167183&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.