⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50181386, and has not been changed.
This name is a synonym of Thelocactus hexaedrophorus subsp. lloydii .
The record derives from Tropicos which reports it as a synonym (record 50181386
) with original publication details: Cactaceae 4: 11 11 1923.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:251046-2
.