Opuntia tortispina var. cymochila (Engelm. & J.M.Bigelow) Backeb. Cactaceae 1: 483. 1958.

Nomenclatural References

• person : Curt Backeberg (1894-1966) Based on occurrence of standard abbreviation 'Backeb.' in the authors string.
• 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.
• database : The Plant List version 1.0, record: tro-5108148
• database : The Plant List version 1.1, record: tro-5108148