The range of eastern redbud extends from New Jersey and Pennsylvania
west to southern Michigan and southeastern Nebraska; south to eastern
Texas; and east to central Florida . Its natural range appears to
exclude the Gulf and Atlantic Coastal Plains . It is extinct from
one locality in extreme southern Ontario .
Texas redbud occurs from southern Oklahoma south to eastern, southern,
and Trans-Pecos Texas; extreme southeastern New Mexico; and northern
Mexico. In Mexico, its range extends from eastern Chihuahua and Coahila
east to Tamps and south to San Luis Potosi and Hidalgo .
- 16. Collingwood, G. H.; Brush, Warren D.; [revised and edited by Butcher, Devereux]
- 34. Little, Elbert L., Jr. 1979. Checklist of United States trees (native and naturalized). Agric. Handb. 541. Washington, DC: U.S. Department of Agriculture, Forest Service. 375 p. 
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