⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-79692, and has not been changed.
This name is a synonym of Euphorbia parryi Engelm..
The record derives from WCSP which reports it as a synonym (record 79692) with original publication details: Hayden Bull. Geol. Geogr. Surv. 2: 243 1876.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:346513-1.