1. Leaves 4-lobed, truncate or even indented at apex; buds glabrous
1. Leaves entire, acute to acuminate; buds finely silvery-hairy.
All species found in Magnoliaceae
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March 24, 2018. http://www.michiganflora.net/family.aspx?id=Magnoliaceae.