⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50180232, and has not been changed.
This name is a synonym of Mammillaria backebergiana subsp. ernestii .
The record derives from Tropicos which reports it as a synonym (record 50180232
) with original publication details: Cact. Suc. Mex. 16: 36, f. 23 36 1971.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:150939-2
.