Pediocactus simpsonii var. robustior (J.M.Coult.) L.D.Benson in Cact. Succ. J. (Los Angeles) 34(1): 19. 1962.

Nomenclatural References

• person : John Merle Coulter (1851-1928) Based on occurrence of standard abbreviation 'J.M.Coult.' in the authors string.
• person : Lyman David Benson (1909-1993) Based on occurrence of standard abbreviation 'L.D.Benson' in the authors string.
• database : The Plant List version 1.0, record: tro-50184596
• database : The Plant List version 1.1, record: tro-50184596