Facheiroa squamosa var. polygona (F.Ritter) P.J.Braun & Esteves in Kakteen And. Sukk. 40: 202. 1989.

Nomenclatural References

• person : Eddie Esteves Pereira (b.1939) Based on occurrence of standard abbreviation 'Esteves' in the authors string.
• person : Friedrich Ritter (1898-1989) Based on occurrence of standard abbreviation 'F.Ritter' in the authors string.
• person : Pierre Josef Braun (b.1959) Based on occurrence of standard abbreviation 'P.J.Braun' in the authors string.
• database : The Plant List version 1.0, record: kew-2806488
• database : The Plant List version 1.1, record: kew-2806488