⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50145598, and has not been changed.
This name is a synonym of Mammillaria petrophila subsp. arida .
The record derives from Tropicos which reports it as a synonym (record 50145598
) with original publication details: Monatsschr. Kakteenk. 23: 181 181 1913.