Echinocereus rigidissimus (Engelm.) F.Haage Special Preisverz.: 13. 1897.

Nomenclatural References

• person : Ferdinand Friedrich Haage (1859-1930) Based on occurrence of standard abbreviation 'F.Haage' in the authors string.
• person : George Engelmann (1809-1884) Based on occurrence of standard abbreviation 'Engelm.' in the authors string.
• database : The Plant List version 1.0, record: kew-2782811
• database : The Plant List version 1.1, record: kew-2782811