⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2781866, and has not been changed.
This name is a synonym of Discocactus heptacanthus subsp. magnimammus (Buining & Brederoo) N.P.Taylor & Zappi.
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Monatschr. Kakteenk. 10: 170 1900.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:87412-2.