⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50335320, with some changes.
This name is a synonym of Echinomastus unguispinus subsp. unguispinus .
The record derives from Tropicos which reports it as a synonym (record 50335320
) with original publication details: 1974.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:168647-2
.