Natural distribution map for <i><b><a href="//commons.wikimedia.org/wiki/Category:Chrysolepis_chrysophylla" title="Category:Chrysolepis chrysophylla">Chrysolepis chrysophylla</a></b></i> (syn. <i>Cananopsis chrysophylla</i>)
Elbert L. Little, Jr., of the U.S. Department of Agriculture, Forest Service, and others
1971
<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 "Atlas of United States Trees" by Elbert L. Little, Jr. (and other publications)</a>