⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2782582, and has not been changed.
This name is a synonym of Echinocereus viridiflorus var. davisii .
The record derives from WCSP (in review) which reports it as a synonym with original publication details: J. Cact. Succ. Soc. Amer. 2: 466 1931.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:87874-2
.