Echinocereus rigidispinus (Muehlenpf.) Engelm. ex J.N.Haage in Preis-Verz. Cact.: 23. 1859.

Nomenclatural References

• person : George Engelmann (1809-1884) Based on occurrence of standard abbreviation 'Engelm.' in the authors string.
• person : Johann Nicolaus Haage (1826-1878) Based on occurrence of standard abbreviation 'J.N.Haage' in the authors string.
• person : Philipp August Friedrich Mühlenpfordt (1803-1891) Based on occurrence of standard abbreviation 'Muehlenpf.' in the authors string.
• database : The Plant List version 1.0, record: kew-2782810
• database : The Plant List version 1.1, record: kew-2782810