⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2769019, with some changes.
This name is a synonym of Dioon sonorense (De Luca & al.) Chemnick, T.Greg. & Salas-Morales.
The record derives from WCSP which reports it as a synonym (record 383602) with original publication details: Brittonia 36: 226 1984.