Included in Pedaliaceae in Michigan Flora.
All species found in Martyniaceae
Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. September 25, 2020. https://michiganflora.net/family.aspx?id=Martyniaceae.