Hamatocactus hamatacanthus (Muehlenpf.) F.M.Knuth Kaktus-ABC: 353. 1936.

Nomenclatural References

• person : Frederik Marcus Knuth (1904-1970) Based on occurrence of standard abbreviation 'F.M.Knuth' 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-2839003
• database : The Plant List version 1.1, record: kew-2839003