Nomenclature: wfo-0001287164
![George Engelmann (1809-1884) George Engelmann (1809-1884)](http://commons.wikimedia.org/wiki/Special:FilePath/Georg-Engelmann.jpg)
![John Milton Bigelow (1804-1878) John Milton Bigelow (1804-1878)](http://commons.wikimedia.org/wiki/Special:FilePath/Diplacus%20bigelovii%20%28A.%20Gray%29%20A.%20Gray%20var.%20cuspidatus%20A.%20L.%20Grant%2020000508%2001.jpg)
![Joseph Nelson Rose (1862-1928) Joseph Nelson Rose (1862-1928)](http://commons.wikimedia.org/wiki/Special:FilePath/Joseph%20Nelson%20Rose.jpg)
![Nathaniel Lord Britton (1859-1934) Nathaniel Lord Britton (1859-1934)](http://commons.wikimedia.org/wiki/Special:FilePath/Nathaniel%20Lord%20Britton.jpg)
Sclerocactus polyancistrus Cactaceae 3: 213. 1922.
Nomenclatural References
- person : George Engelmann (1809-1884) Based on occurrence of standard abbreviation 'Engelm.' in the authors string.
- person : John Milton Bigelow (1804-1878) Based on occurrence of standard abbreviation 'J.M.Bigelow' in the authors string.
- person : Joseph Nelson Rose (1862-1928) Based on occurrence of standard abbreviation 'Rose' in the authors string.
- person : Nathaniel Lord Britton (1859-1934) Based on occurrence of standard abbreviation 'Britton' in the authors string.
- database : The Plant List version 1.0, record: tro-5100455
- database : The Plant List version 1.1, record: tro-5100455
Taxonomy: Accepted in 2018-07 classification
Occurs in: 2018-07 : 2019-03 : 2019-05 : 2021-12 : 2022-06 : 2022-12 : 2023-06 : 2023-12Placement: Caryophyllales > Cactaceae > Sclerocactus > Sclerocactus polyancistrus