Psorothamnus fremontii var. attenuatus Barneby

Chicago citation style
Psorothamnus fremontii var. attenuatus Barneby. Apr 1884. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13367297&repo=DPLA. (Accessed November 17, 2018.)
APA citation style
(Apr 1884) Psorothamnus fremontii var. attenuatus Barneby. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13367297&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13367297&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.