Grusonia bulbispina subsp. basileocephala
Grusonia bulbispina subsp. basileocephala in Haseltonia 25: 16. 2018 sec. Baker, M. A. & Pinkava, D. J.: Chromosome numbers in some cacti of Western North America—IX. – Haseltonia 2018(25): 5-291 wfo-0001431011
- ≡Corynopuntia bulbispina subsp. basileocephala in Piante Grasse 31: 17. 2011 syn. sec. ??? wfo-0001430523