English: Natural distribution map for Parkinsonia aculeata. Original caption:
Map 107. Parkensonia aculeata L., Jerusalem-thorn. Widely distributed in tropical America (not mapped), also cultivated and naturalized northward in Southeastern United States and in Old World tropics.
Date
Source
Elbert L. Little, Jr. (1976), Atlas of United States trees, Vol. 3, minor Western hardwoods: U.S. Department of Agriculture Miscellaneous Publication 1314, 13 p., 290 maps.
Author
Elbert L. Little, Jr., of the U.S. Department of Agriculture, Forest Service