Natural distribution map for <i>Cliftonia monophylla</i> (buckwheat tree)
Elbert L. Little, Jr., of the U.S. Department of Agriculture, Forest Service
1977
<a rel="nofollow" class="external text" href="https://esp.cr.usgs.gov/data/little/">USGS Geosciences and Environmental Change Science Center: Digital Representations of Tree Species Range Maps from: Elbert L. Little, Jr. (1977), <i>Atlas of United States trees, <b>Vol. 4</b>, minor Eastern hardwoods</i>: U.S. Department of Agriculture Miscellaneous Publication 1342, 17 p., 230 maps.</a>