Echinopsis werdermannii Frič ex Fleisch. in Friciana 7: 9. 1962.

Nomenclatural References

• person : Alberto Vojtěch Frič (1882-1944) Based on occurrence of standard abbreviation 'Frič' in the authors string.
• database : The Plant List version 1.0, record: kew-2783709
• database : The Plant List version 1.1, record: kew-2783709