This species is found in the eastern USA, in the Piedmont and Blue Ridge physiographic provinces of Virginia and North Carolina west to the French Broad River and south to the northern Piedmont of South Carolina, and parts of the Valley and Ridge physiographic province in western Virginia and extreme eastern West Virginia and in a small area of the Coastal Plain of eastern Virginia (Highton et al. 1989); also probably the Blue Ridge Mountains and Valley and Ridge provinces in northeastern Tennessee (Redmond and Scott 1996).