Jeffersonia is a genus of only two species, the other being J. dubia, occurring in eastern Asia. The Asian species is somewhat different and sometimes segregated as the monotypic genus Plagiorhegma​.

All species found in Jeffersonia

Jeffersonia diphyllaTWINLEAF 


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. September 30, 2022.