⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-78627, and has not been changed.
This name is a synonym of Euphorbia bicolor Engelm. & A.Gray.
The record derives from WCSP which reports it as a synonym (record 78627) with original publication details: Boston J. Nat. Hist. 5: 233 1845.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:101329-2.