⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-5100995, and has not been changed.

Mammillaria oliviae Orcutt is a synonym of Mammillaria grahamii Engelm.

The record derives from Tropicos which reports it as a synonym (record 5100995) with original publication details: W. Amer. Sci. 12: 163 163 1902.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:151385-2.