- IPNI Life Sciences Identifier (LSID)
- Report on the United States and Mexican Boundary Survey, Made Under the Direction of the Secretary of the Interior, by William H. Emory. Volume 2, Botany
- Family as entered in IPNI
- N. Mexic
- Duplicate citation of
- Croton sonorae Torr., Rep. U.S. Mex. Bound., Bot. [Emory] 194 (1858).