Castanea ozarkensis Ashe, the Ozark chinquapin of the vascular plant family Fagaceae, is distributed widely throughout the Interior Highlands of Arkansas and the adjacent states of Missouri and Oklahoma. Examination of material from throughout the range of C. ozarkensis indicates demonstrable morphological intergradation with C. pumila (L.) Miller sensu lato, the chinquapin of wide distribution in much of the eastern United States. It is proposed that C. ozarkensis be reduced to C. pumila var. ozarkensis (Ashe) Tucker, comb. nov.
Tucker, Gary E.
"Castanea pumila var. ozarkensis (Ashe) Tucker, comb. Nov,"
Journal of the Arkansas Academy of Science: Vol. 29
, Article 23.
Available at: http://scholarworks.uark.edu/jaas/vol29/iss1/23