⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-37857, and has not been changed.
This name is a synonym of Euphorbia arizonica Engelm..
The record derives from WCSP which reports it as a synonym (record 37857) with original publication details: Torreya 11: 260 1911.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:55206-2.