Echinocactus polycephalus subsp. xeranthemoides (J.M.Coult.) N.P.Taylor in Cactaceae Consensus Init. 5: 12. 1998.

Nomenclatural References

• person : John Merle Coulter (1851-1928) Based on occurrence of standard abbreviation 'J.M.Coult.' in the authors string.
• person : Nigel Paul Taylor (b.1956) Based on occurrence of standard abbreviation 'N.P.Taylor' in the authors string.
• database : The Plant List version 1.0, record: kew-2782180
• database : The Plant List version 1.1, record: kew-2782180