Matucana haynei var. elongata (Rauh & Backeb.) F.Ritter Kakteen Südamerika 4: 1497. 1981.

Nomenclatural References

• person : Curt Backeberg (1894-1966) Based on occurrence of standard abbreviation 'Backeb.' in the authors string.
• person : Friedrich Ritter (1898-1989) Based on occurrence of standard abbreviation 'F.Ritter' in the authors string.
• person : Werner Rauh (1913-2000) Based on occurrence of standard abbreviation 'Rauh' in the authors string.
• database : The Plant List version 1.0, record: tro-5101884
• database : The Plant List version 1.1, record: tro-5101884