⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50218090, and has not been changed.
This name is a synonym of Stenocactus dichroacanthus subsp. violaciflorus (Quehl) U. Guzmán & Vazq.-Ben..
The record derives from Tropicos which reports it as a synonym (record 50218090) with original publication details: Cactaceae 3: 114 114 1922.