Echinocactus hamatacanthus var. longihamatus (Galeotti ex Pfeiff.) J.M.Coult. in Contr. U.S. Natl. Herb. 3: 365. 1896.

Nomenclatural References

• person : Henri Guillaume Galeotti (1814-1858) Based on occurrence of standard abbreviation 'Galeotti' in the authors string.
• person : John Merle Coulter (1851-1928) Based on occurrence of standard abbreviation 'J.M.Coult.' in the authors string.
• person : Ludwig Karl Georg Pfeiffer (1805-1877) Based on occurrence of standard abbreviation 'Pfeiff.' in the authors string.
• database : The Plant List version 1.0, record: kew-2781862
• database : The Plant List version 1.1, record: kew-2781862