Penstemon maguirei Crossw

Chicago citation style
Penstemon maguirei Crossw. 20 Jul 1945. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_2119891&repo=DPLA. (Accessed November 12, 2018.)
APA citation style
(20 Jul 1945) Penstemon maguirei Crossw. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_2119891&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_2119891&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.