Mammillaria heyderi subsp. macdougalii (Rose) D.R. Hunt, Mammillaria Postscripts 6: 10. 1997 sec. Hunt 2016
- ≡Mammillaria macdougalii Rose, Stand. cycl. hort. Bailey 4: 1982. 1916 syn. sec. Guzmán & al. 2003
- =Neomammillaria macdougalii (Rose) Britton & Rose, Cactaceae (Britton & Rose) 4: 74. 1923 syn. sec. Guzmán & al. 2003
- =Mammillaria heyderi var. macdougalii (Rose) L.D. Benson in Proc. Calif. Acad. Sci., ser. 4, 25: 265. 1944 syn. sec. Guzmán & al. 2003
- =Mammillaria gummifera var. macdougalii (Rose) L.D. Benson, Cacti Ariz., ed. 3: 22. 1969 syn. sec. Guzmán & al. 2003